How To Spot A Ruby - ID Gems Like A Gemologist!
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- Опубліковано 20 лип 2022
- On today's episode, Rebecca lets you in on the secrets the pros use to pick out rubies from all other red gems! If you've ever wondered how to tell ruby from spinel, or even glass, this is the video for you! We'll talk about gemstone ID features as well as some simple tools you can fit in your pocket for your next gem hunt.
01:03 - Ruby vs Garnet vs Spinel
01:54 - Natural Ruby's crystal shape
02:46 - Ruby vs Glass Ruby Simulant
03:20 - Ruby inclusions
04:22 - Simple Tools for Gem ID
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Gemstones.com is one of the leading experts on gemstones and is the best source on UA-cam for all things gem related. Featuring gem history, the science behind the stones, gemstones in pop culture, and much more, you too can become a gemology expert by immersing yourself in the Gemstones.com channel. Rebecca, our host, is a Graduate Gemologist from the Gemological Institute of America and has an FGA from the Gemmological Association of Great Britain.
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#Gemstones #ruby #gemology #rubíes #jtv #howto
Ruby is a big topic! But today, we wanted to just give a basic overview of some key factors to look for in picking out a ruby from other red gems. We hope this is helpful for beginners, but also hope our more experienced viewers will also find something interesting. If nothing else, it's a good excuse to look at lots of rubies! Let us know if you liked this and would like to know more.
Yes it’s a vast topic, it’s the gemstone I specialised in.
There are a few critical tests and things to look for that are missing in this video.
1. In order to start to identify Ruby Corundum and Synthetic Ruby Corundum(which wasn't even MENTIONED in this video) like a Graduate Gemologist(It's two words on the Diploma, not one), the first thing to look is the correct R.I. or Refractive Index. For that, you will need a Refractometer, Monochromatic Light, R.I. Liquid, and Gloves to protect your hands. Both natural Ruby Corundum and Synthetic Ruby Corundum will have a R.I. of about 1.770 High - 1.762 Low, birefringence of 0.008. These numbers are very important to START to Identify Ruby Corundum and Synthetic Ruby Corundum like a Graduate Gemologist. Since it shows two numbers, it proves Ruby Corundum and Synthetic Ruby Corundum is a Double Refractive gemstone.
2. Once the R.I. falls in the right range, a critical thing to look for is Optic Character. Ruby Corundum and Synthetic Ruby Corundum is Uniaxial Negative. This means that when rotating the Stone 180 degress on the Hemicylinder of the Refractometer, the 1.770 High shade cut off remains constant, while the 1.762 Low shade cut off moves.
3. Ruby Corundum and Synthetic Ruby Corundum can display a Uniaxial Optic Figure. It can be seen using a Polariscope and a Optic Sphere glass wand. I won't say how to find it since that is a trade technique.
4. There are different internal features that natural Variety: Ruby, Species: Corundum has that are not the same in Variety: Synthetic Ruby, Species: Corundum.
5. In the case of flame fusion Synthetic Ruby Synthetic Corundum, the most likely identifying feature is an internal growth feature called Curved Striae. This can only be seen using Darkfield Illumination using a Gemological Microscope. If a Ruby Corundum appears eye clean, it is most likely a Synthetic. Flame fusion Synthetic Ruby Corundum can display Gas Bubbles, something natural Ruby Corundum will not. Synthetic Ruby Corundum made by Flame Fusion might also show Platinum inclusions from the crucible used to make it, Flux, Wispy Veils, and rarely "Comet Tail" inclusions made of Flux.
6. If a Synthetic Ruby Synthetic Corundum is made using the Hydrothermal method, it will display Zigzag growth structures.
7. Ruby Corundum of natural origin can have in it: Apatite crystals, Rutile(silk), rounded mineral crystals, partially healed fractures, "snowballs" a trade term that I won't describe here but if you have a G.I.A. Gem Identification Lab Manual you can look it up under Inclusion Photographs, hexagonal growth banding, and negative crystals.
8. The Spectroscope is an optional test and doesn't always show a Spectrum, so it is not as reliable as portrayed in the video.
9. One of the most important instruments to check if a Stone is Ruby Corundum or Synthetic Ruby Corundum is a Dichroscope. What does it do? It checks for Pleochroism, or showing multiple colors in a Stone that the naked eye might not see immediately. Since Ruby Corundum and Synthetic Ruby Corundum is Pleochroic, using a Dichroscope is a mandatory test to prove a Gemstone is Double Refractive. If she was trained more, she would have known this and mentioned it. On the 20 Stone Final Exam, if you have a DR stone and do not mark down Pleochroism using a Dichroscope, you will fail to prove a stone is DR and FAIL the Exam.
So, for anyone who watches this video: If you think this video will help you to identify Ruby Corundum AND Synthetic Ruby Corundum(which wasn't even MENTIONED in this video) like a Graduate Gemologist.. you are WRONG! How do I know? I know because on Sept. 28th, 2022, I passed my 20 Stone Final Exam for Gem Identification. Since I passed my other 2 Courses already, I AM a Graduate Gemologist.
@@KrosanBeast315 can we talk ?
you are a nice guy your wife may divorce you after some years
if you need we can provide in bulk.
Ruby is my wife's birthstone. She has several very nice pieces of jewelry including a ruby tennis bracelet, Burma ruby necklace with pearls, and Burma ruby earrings. She wore them all at her birthday party. I used a small UV flashlight on them and amazed everyone at the party when they just glowed, and glowed a brilliant pinkish-red color. It was a hit.
she’s a cancer, obviously a queen💖
@@-kate110😂😂😂😂
Are u a sapphire?
They pretended to care convincingly, while they were actually thinking, "what's this old fool doing now?"
My FGA diploma exam had as a last question, "You have been given a parcel of 3 different species of natural red stones in bead form. What three species are they are how/what tests would you use to differentiate them?" Seems simple at first, but you really have to put some skull sweat into the answer. I remember it well, I loved the question.
I love this segment and wish it was longer and more detailed. I would like to see included a comparo of the uv light, spectroscope, dichroscope, refractometer and polariscope responses for 'confusable' reds, i.e. tourmalines, spinels, red sapphire vs. 'true' ruby, red glass, garnets. (On a different note, I'd love to see a segment on what establishes a Paraiba tourmaline vs. a pale blue or minty green tourmaline.) Thanks in advance!
Please make this a series! This is probably my new favorite video idea y’all have had!
Rubies in Sri Lanka are extremely rare and the probability of finding one is 1:1,000,000, Surprisingly most respectable gem labs aren't even able to identify the locality and the locality test from the labs comes out as Burmese or Mozambique. Usually what we see in the market as rubies are treated pink sapphires heated under high oxygen.
this channel is singlehandedly responsible for my gemstone fixation and I regret nothing
I'm a fan of this concept of video. I hope we get more.
I crush it up and mix it In water . If it's raspberry flavor, it was spinel , if strawberry , it was garnet , but if it is dragon fruit ,then that is ruby!
( Hell no I am not serious )
I have a 1.5 ct, glass filled ruby. It is not wonderful but helps me learn.
Again, you have brought the magic of the world of gems and gemology closer to the general public. This is critical to passing the torch on to the next generation of gemologists. I would, however, caution taking on the task of identifying a gem with little to no prior experience. This can go wrong and turn into a VERY expensive mistake. I would suggest taking gemology classes and looking at as many examples of gems as possible. I would also recommend both Koivula and Gubelin's photo atlas of gem inclusions and the Sisk gem reference guide as great starting points on one's gem journey. Again, my hat is off to this channel for all the hard work in bringing both joy, entertainment, and knowledge to the world of gemology, jewelry, and gems. Bravo, bravo, bravo!
Great video Rebecca! It helped save me from making a purchasing mistake, glass being passed off as ruby. Light scratches and included bubbles gave it away. Thank you!!!
There are a few critical tests and things to look for that are missing in this video.
1. In order to start to identify Ruby Corundum and Synthetic Ruby Corundum(which wasn't even MENTIONED in this video) like a Graduate Gemologist(It's two words on the Diploma, not one), the first thing to look is the correct R.I. or Refractive Index. For that, you will need a Refractometer, Monochromatic Light, R.I. Liquid, and Gloves to protect your hands. Both natural Ruby Corundum and Synthetic Ruby Corundum will have a R.I. of about 1.770 High - 1.762 Low, birefringence of 0.008. These numbers are very important to START to Identify Ruby Corundum and Synthetic Ruby Corundum like a Graduate Gemologist. Since it shows two numbers, it proves Ruby Corundum and Synthetic Ruby Corundum is a Double Refractive gemstone.
2. Once the R.I. falls in the right range, a critical thing to look for is Optic Character. Ruby Corundum and Synthetic Ruby Corundum is Uniaxial Negative. This means that when rotating the Stone 180 degress on the Hemicylinder of the Refractometer, the 1.770 High shade cut off remains constant, while the 1.762 Low shade cut off moves.
3. Ruby Corundum and Synthetic Ruby Corundum can display a Uniaxial Optic Figure. It can be seen using a Polariscope and a Optic Sphere glass wand. I won't say how to find it since that is a trade technique.
4. There are different internal features that natural Variety: Ruby, Species: Corundum has that are not the same in Variety: Synthetic Ruby, Species: Corundum.
5. In the case of flame fusion Synthetic Ruby Synthetic Corundum, the most likely identifying feature is an internal growth feature called Curved Striae. This can only be seen using Darkfield Illumination using a Gemological Microscope. If a Ruby Corundum appears eye clean, it is most likely a Synthetic. Flame fusion Synthetic Ruby Corundum can display Gas Bubbles, something natural Ruby Corundum will not. Synthetic Ruby Corundum made by Flame Fusion might also show Platinum inclusions from the crucible used to make it, Flux, Wispy Veils, and rarely "Comet Tail" inclusions made of Flux.
6. If a Synthetic Ruby Synthetic Corundum is made using the Hydrothermal method, it will display Zigzag growth structures.
7. Ruby Corundum of natural origin can have in it: Apatite crystals, Rutile(silk), rounded mineral crystals, partially healed fractures, "snowballs" a trade term that I won't describe here but if you have a G.I.A. Gem Identification Lab Manual you can look it up under Inclusion Photographs, hexagonal growth banding, and negative crystals.
8. The Spectroscope is an optional test and doesn't always show a Spectrum, so it is not as reliable as portrayed in the video.
9. One of the most important instruments to check if a Stone is Ruby Corundum or a Synthetic Ruby Corundum is a Dichroscope. What does it do? It checks for Pleochroism, or showing multiple colors in a Stone that the naked eye might not see immediately. Since Ruby Corundum and Synthetic Ruby Corundum is Pleochroic, using a Dichroscope is a mandatory test to prove a Gemstone is Double Refractive. If she was trained more, she would have known this and mentioned it. On the 20 Stone Final Exam, if you have a DR stone and do not mark down Pleochroism using a Dichroscope, you will fail to prove a stone is DR and FAIL the Exam.
So, for anyone who watches this video: If you think this video will help you to identify Ruby Corundum AND Synthetic Ruby Corundum(which wasn't even MENTIONED in this video) like a Graduate Gemologist.. you are WRONG! How do I know? I know because on Sept. 28th, 2022, I passed my 20 Stone Final Exam for Gem Identification. Since I passed my other 2 Courses already, I AM a Graduate Gemologist.
I saw in hot selling apps,, a ruby stone 4.5crt rm4 in one piece, selling by a (seller from China) and there's a million of it. They claim their stone are original ruby unheated?? How come unheated is so cheap??. Btw, RM is ( Malaysia currency)
@@roseamarin5109careful with jewelry coming out of China and India. Lots of glass and imitation stones.
🎉Congratulations!
I am a gemstone collector. And I would love to be a gemologist one day as well. Thank you so much for the information and congratulations again😊
Thank you so so much for the video! This is my absolutely favourite gemstone and this is my birthday stone according to astrology!
I really appreciate this type of information. I'd like to see more of this. I would like more information about spinel. They are one of my favorite stones. Thank you. I enjoy your videos.
What fun. It's always nice to get tips for final determination. Good job on the instructional video it was helpful. Keep the goodness coming. Be happy, safe and stay healthy 😷⚒
Love this new video format
The more I see any gem the easier it is for me, especially finding the host rocks that usually have the gems I'm looking for 😊
I currently have Burmese, Tanzanian, Mozambique, star rubies and am working on rubies from Greenland.
I also have rubies from Vietnam, Thailand and Pakistan.
I finally got earrings with rubies from Greenland. They are quite beautiful.
I had a dream last night that I was sorting through a handful of raw rubies. And then this was one of the first videos recommended to me. Noice
THANKS FOR YOUR VIDEO
Thanks for the tips.
You had a man on a show showing different color diamonds. There was a brown diamond that looked like it had a crack but was a part of the stone itself. I have one of those stones you can see the spot in the brown diamond. I really like my stone. Wanted to share that with you. Thanks so much.
I've bought both a star sapphire ring and a star ruby ring as well, in just waiting for them to be delivered. This video will help me a lot to identify if the ruby is real or not
very good review about ruby ❤
Great Information
The best way...raman spectroscopy. More fun would be LA-ICP-MS. I work with ruby daily, and my challenge is figuring out exactly where its from. Getting unusual origins like Tajikistan or Greenland is always exciting.
I wonder if you were able to work with a Ruby from Sri Lankan (Ceylon)?
@@devinkaillukkubura2565 Very rarely unfortunately. Maybe a few times a year.
Where did i find original one??
Ever since the day i started wearing a Ruby, since last one and a half year, i stopped making losses and also stopped getting financially cheated by people. Also i feel insulated from fear or insecurity.
Another good one. Thanks! Have you made a video of Arkansas gems? And are there really rubies at Ruby Falls?
Love the video! 😀👌💎❤️
Thanks!
Could you please make a video about how to clean tarnished galena (PbS)?
I look forward to every episode. Absolutely love the entire crew you have. I previously suggested a show on Massachusetts gems/stones/minerals but realized there's probably not enough content. Could you do a show on all of New England? Pretty please! That should be enough content and would be amazing! Please and thank you. Love you all!
I would also love this!
Nah definitely more than enough...seeing as how it was the first place to commercially mine and sell emery...
Thanks for your video. According to your description of how or what a ruby should looks like, I think I have a genuine one. First,it’s bright red,blood color and clear. No scratch on the cut surface,it feels very heavy in your hand, and it can cut mirror. It’s cut in a heart shape and it’s about the size of my thumb. It looks so beautiful. With all these characteristics,do you think it’s a genuine ruby ? Thanks
On the Imperial State Crown of the United Kingdom, the Black Prince's Ruby is actually a very large spinel.
What fascinating facts and tricks to know if you have a rudy gemstone for beginners.🤔♦️💎 It's amazing to see the differences between a rudy, garnet and spinal gem by their colors🔴, structure🟥 and where you can find them.🏞 Even the tools used for them are very handy as well.👩🔬🔎🔬 Thanks for teaching us about this. Good video.🙂👍👩🏫💎
Thankyou ...
Thanks
It’s ruby from difference origins their characteristics will be different such as inclusion, color and etc.? I do have Sri Lanka Ruby, the color looks pinkish, I do like more information about Cassiterite.
Thank you
My engagement ring is a natural red orange spinel. People often think it's an odd colored ruby
Could you add some recommendation links to "affordable but good enough" versions of the gem identification tools you mention, please? Thanks a bunch! 🙏🏼💕
شكرا جزيلا علي هاذه المعلومات النيرة و المفيدة؛لك كا الخير والعافية ؤختي الكريمة.
Thank you for the great video. Wonder what would be the price for a star ruby.
Although might be hard to distinguish, I would love to know how to distinguish real turquoise from a fake one.
Excellent advice. Thank you Rebecca.
OMG I love this video. I literally help people look for ruby, sapphire and rhodolite garnet in Franklin NC. My shop is called Cowee Gift Shop
This is not addressing by far the most common lookalike - synthetic ruby.
That's why this is a basic overview. We thought about getting into treatments and synthetics, but that's a much longer discussion, and as we said we chiefly wanted this video to enable beginners to start sorting out ruby from other red stones. But if there's interest, we'll certainly go deeper and talk about tell-tale signs of various synthetics and treatments.
@@gems As a dealer in Kenya, I can tell you the biggest problem here is synthetics being sent over to Tanzania where they roughly shape them (either into rough corundum crystal shapes, barrels or water-worn shapes) then sand blast them and roll them around in mud...Buyers are being done out of big money by these fakes, and they are everywhere. Only a microscope and knowledge of ruby inclusions can tell them apart. Buyers beware, if it's big and incredibly clean - IT'S A FAKE!!
Not just ruby either, sapphire, emerald, spinel, tanzanite, tsavorite etc...all are being faked and sold by "poor miners" from the bush.
Thanks for the valuable information about synthetics
Thank you so much! I have so many garnets, rubies, spinels. They are all in their final cuts to be set in jewelry. I just need to find someone who is willing to spend the money on them. I have a couple Burmese rubies and some more rare garnets
Ty
Emeralds! 👍
I have too much Ruby's nd now I know how to see Ruby ☺☺☺
Great 👍 l like this video
Please advise me about that do all ruby’s fluoresce for uv light or do some Ruby don’t fluoresce for uv light 💡 please help me out thank you 😊
nice
hi...i found a vein full of ruby...problem is that im slovenian and here nobody knows that we have vulkano long time ago...when we have panonsko sea...need some help advice contak where can i sell them in rought form. thanks
I have a nice hunk of record keeper ruby, I kinda want to get it faceted
What is its difference with ruby zoisite, usually made into bead bracelets?
I have a difficult question about rubies I'm trying to find out and so far the closest info I've seen regarding ANY info on the topic is from a Gubelin article probably before he got ill regarding SIAM rubies. But either the last king or before that of thailand was finding VERY high quality Royal red rubies with abundant amounts of iron preventing them to flouresce and also had a higher magnetism similar to that of a garnet. During the time Burmese rubies were eligal in the USA I'm pretty sure these were 1 of the main sources of top quality rubies at the time and ran dry in government mines since. If I'm not mistaken I think there was pictures of that king somewhere wearing 1 of these rubies on a pendant that is dark like an almandine but as pure red as a ruby. I'm curious If you had come across any odd red garnets that might not make much sence(eg, pleochroisic to orange(manganese inert), very high Ri (1.87) or so much iron it cant be read without chemical analysis on top of the first 2? or if you know anything about these older siam royal red rubies I might be talking about?
From my understanding Garnets cant be orange without a fundamental element being manganese which is inert, But I have read that rubies get there pinks and orange colors from iron content (orange leaning more towards ferric iron or fe3/fe2o3) which I believe fe2o3 is a key ingredient to "thermite reaction" using aluminum and without anymore added oxygen create Al2o3 due to the redox reaction it's going through in nature in the ground I feel based on a university science competition I read about on redox reactions (or molten iron if oxidized in ambiant air which was used to weld in early 1900s to put railroads together due to it was stronger then the metal used on.
I have a few I've collected over my years. Trying to sell now. What's a good place to sell them?
I live in Vietnam and I’m treasure hunting 😍
I wear a hessonite ring. I think it's a light coloured red garnet.
could you do how to spot an opal? please :)
Sent the link of this video to my friend.
Where to sell rough gemstone? please can you help me.
Wow
Please do the video the help us identify blue sapphire
Hi mam how r you I need a paraiba tourmaline identification vedeo
I’m dying on how to know if you looking at a chalcedony cause I have a piece of something and idk if it’s fire agate or red chalcedony
I love this lady's eyes.
Very cute madam!
the problem with ruby is they can make it in the lab and looks just like the orginal also there are glass filled ones. İ wish u guys would aim more on the fake ones and how to identifie from real ones.
“For she is more precious than rubies” my wedding ring 💍 will be a ruby ❤
How about white sapphire. Since big diamonds are so expensive white sapphire has become popular. But surely it's more than a diamond alternative. Make it the star.
MAKE IT REFORM AND MAKE SAPPHIRE REFORM TOO SO WE CAN HAVE GARNET
Your uploaded all videos and i loved all but i tried to look forward and i got when i uploaded my Gemstones pictures you said that I'm a bad boy. That's why no more for watching. But if your sounds made my mind soft satisfying and i will continually keep watching. But what gave of your mind from him, and not the same what he gave into my mind. So much good quality Gemstones and gold in ours Country but no one opened eyes to see those. Gifts were different from sky whole.
I don't understand how inclusions work. How do I tell which inclusions are natural & which are synthetic
Yooperlite
Ruby quality check
So I just happen to be researching gem stone and Um is that Amber 😉😉😉 Hahn 🧐 I know that voice anywhere
How bout the rounded ones the river rolls down stream they never mention those even diamonds and sapphires huh
What about the dicroscope ? hehehe . Nice video by the way.😘
The most ruby in the world in Cambodia 🇰🇭 we called Pailen province.
Please do blue gems
Hey 👆👆👆 look up the handle above sells and delivers 💎 and gems at any location🌎✈️ dude is real and legit and has the best price ever tested and trusted 💯😊
ผมก็มี 5 กะรัตมันสวยมาก
Great video, but honestt I prefer ruby on rails 😉
How are my going to sell my ruby
experience has no substitute .
How about, "how to restrain oneself from homicide when told that golden or imperial topaz is the same stone as citrine"....(or that beryl and sapphire are the same stone, another goodie)
Good golden topaz is exceedingly hard to find and is often faked with citrine of similar color....
In Kenya they love to tell you that the stone in front of you is "rubyspinel"....even in the country mine's department lab...
Ye I found red stone to the sea that's truly like a ruby I don't what is it....
Why did she FAIL to mention that Synthetic Ruby Corundum exists??
Most clarified rubies are the Thai rubies
Ruby will glow bright pink under uv light
Have Ruby can i sale
Do your average basic Ruby have any real worth? Do Indian star Rubys have any worth?
Hey 👆👆👆 look up the handle above sells and delivers 💎 and gems at any location🌎✈️ dude is real and legit and has the best price ever tested and trusted 💯😊
We can provide every stone n mineral available in Pakistan n Afghanistan.
Yafe Meod!
When all red stones were rubies, they were all rubies.
Just because we have refined the name of "ruby" based on advances, doesn't make the previous naming incorrect.
In an alternate universe, "ruby" means "all red stones" and the crystal we call ruby today is now called "gizzelflat". In that universe there is no host making silly claims about how the classification of words today being "correct" and the classifications of the past being "wrong"
Host could have said: "in the past ruby referred to all red stones. But today Rubies are a specific selection of red crystals". Because there is no truth to the word "ruby". It means what society decides. There is NO true ruby as a word belonging to a type of object. We make it up as we go.
Can you look at pic,,tell.
Not all red korundum is a Ruby.
You forget to tell Its actually a special colour of Sapphire. 🤔😅
uve two robies too and ts hard ess is 1/ruby s hard ness..
Ruby found in Pakistan
Hardness
😘💐🇩🇿