Italian Coral Gemstone: It is one of the most commonly trading varieties of India, especially used by the traders of North India. It is the collection of corallum rub rum which is found in the Mediterranean Sea with a depth of 10 to 300 meters below sea level. Japanese Coral Gemstone: This gemstone is also use in India as social status. In ancient times there was a ritual of gifting Japanese Coral stone to the groom and the bride during the marriage. Thank You!
This type of detection works for stones that have experienced diffusion before being faceted. The color enhancement can only go so deep - when the rough piece of sapphire is faceted, much of the surface is removed which also removes much of the "new" color. It's at the facet edges that the least amount of material has been cut away. As a result, the added color will be thicker along those lines as apposed to the center of each facet.
Honestly, the best way is to send to GIA, they can grade the stones 100% with the confidence. But star in diffusion stone usually has color concentration, but being a cabochon that could be difficult, so you better see the price you are buying it at, if its a steal price, then forget it, because it wont happen.
Diffusion is a technique whereby certain natural elements, those used in nature when colouring allochromatic gems, are placed on the surface of the gem during the heating process and the colour is diffused into the gem. You can also check our article on heat treatment of sapphires: www.navneetgems.com/htp-treatment-on-blue-sapphire-qa-with-mubashir-mansoor/.
The key indicator of diffusion is color bleeding - dark concentrations of the stone's color - around pits and fractures that extend to the stone's surface. Other indicators of treatment include melted crystals, spotty stripes of color, fractures around inclusions, and pits on the surface.
Sapphire is treated with diffusion treatment you will likely see a concentration of color on the edges of the stone’s facets like this stone here. However in this second sapphire without diffusion you will not be able to see any concentration of color on most facets.
The diffusion technique, which involves the addition of color-causing chemicnls during heat trentment, results in a thin layer of color at the surface of colorless or light-colored sapphire.
![Glass Filled Gems: Zombie Crystals [Treatments]](/img/n.gif)
I learnt more in 10 seconds from you than I’ve learnt in 1 month from anyone else. 🙏
Great to know that.
One diffusion. Two no fusion. Great informative video. Thanks for posting
Thank you for sharing views.
# 1 - diffusion. # 2 no diffusion - Thank you!
Thank you for sharing.
Carson and Nina would be proud
Thank you for the response.
oh, it's clear.
thanks so much
Welcome.
Sir please tell me how to differentiate between japani and Italian ref coral
Red coral
Italian Coral Gemstone:
It is one of the most commonly trading varieties of India, especially used by the traders of North India. It is the collection of corallum rub rum which is found in the Mediterranean Sea with a depth of 10 to 300 meters below sea level.
Japanese Coral Gemstone:
This gemstone is also use in India as social status. In ancient times there was a ritual of gifting Japanese Coral stone to the groom and the bride during the marriage.
Thank You!
Please talk about the lab created Paraíba tourmaline!
Sure. We will.
Great information
Thank You!
How to identify is it treated in white,yellow sapphires
You can check out our Unheated Sapphires vs Heated Sapphires in 5 minutes here: www.navneetgems.com/unheated_sapphires_vs_heated_sapphires/
I have a question, as a unprofessional gemology fan where I can get soft light sources? Maybe a lamp is work? Or cellphones’ light? Or a torch？
Thank you for the question.Yes, phone light is good idea if you can diffuse it .
Good information 👍 sir
Thanks and welcome. Please stay tuned for more information.
GOOD INFORMATION SIR
Thanks and welcome
Nice video and thanks
Thank You!
Thank you very much!!
You're welcome!
Thanking for your video..
Thank you for liking the videos.
Is difused Bankok sahppirre are good??
Work?
Yes, We have huge variety of sapphires and you can check on our Instagram page at instagram.com/navneetgemscom/
So the concentration of color at the edge means a diffusion?
Diffusion occurs when molecules in an area of higher concentration move to an area of lower concentration.
This type of detection works for stones that have experienced diffusion before being faceted. The color enhancement can only go so deep - when the rough piece of sapphire is faceted, much of the surface is removed which also removes much of the "new" color. It's at the facet edges that the least amount of material has been cut away. As a result, the added color will be thicker along those lines as apposed to the center of each facet.
THANKS FOR YOUR VIDEO
Thanks for watching!
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How to detect diffusion in star stones? Are they treated to generate the star and enhance color at the same time, or can it be done separately?
Honestly, the best way is to send to GIA, they can grade the stones 100% with the confidence. But star in diffusion stone usually has color concentration, but being a cabochon that could be difficult, so you better see the price you are buying it at, if its a steal price, then forget it, because it wont happen.
h, it's clear.
thanks so much
Thank you for your valuable words.
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Hi there, when u say diffusion, does it mean it is heated? Sorry, newbie here..
Diffusion is a technique whereby certain natural elements, those used in nature when colouring allochromatic gems, are placed on the surface of the gem during the heating process and the colour is diffused into the gem.
You can also check our article on heat treatment of sapphires: www.navneetgems.com/htp-treatment-on-blue-sapphire-qa-with-mubashir-mansoor/.
@@NavneetGemsMinerals oh i see.. thanks for your reply.. appreciate it..
@@luz28 I hope you got your answer.
@@NavneetGemsMinerals yes. Thank you. 😊
is this what they call titanium diffusion?
The key indicator of diffusion is color bleeding - dark concentrations of the stone's color - around pits and fractures that extend to the stone's surface. Other indicators of treatment include melted crystals, spotty stripes of color, fractures around inclusions, and pits on the surface.
Diffused stone is it treated ?? For astrology purpose is it beneficial?? I mean treated
A treated gemstone does not have the same magical properties that a pure untreated stone does.Thus, such stones are not preferred in astrology.
Diffused means treated???
@@sumsa12 Yes.
Thank you
You're welcome
The number 2 stone has a dark circle edge
2 is real. Got that color banding too
Thank you for sharing your views.
Stay Tuned!
Hi! Is this little test right for corundum at all, including rubies I mean? Thank you
This is for Sapphires. If you are looking for rubies, you can visit our website:www.navneetgems.com/
A ruby is a red sapphire!
Wats the correct answer
Well @taruna m, We give you a one hint which is no.1 is diffusion :)
i found it hard to decide,, but maybe first one,, see alot say first one.
if not, they both were clean and had no treatment..
we get answer ? =)
Thank You for sharing your response. One is diffusion. For more details please visit us at www.navneetgems.com
The number 2 stone has a dark edge around the stone.
This is the treated one .
هل يحصل في pink sapphire
Thank you for response.
To know more details with Pink sapphire, Please visit us at navneetgems.com
1.deffusion
2. Heated treatment
Thank you for sharing your views.
so the last number 2 is unheated ??
Sapphire is treated with diffusion treatment you will likely see a concentration of color on the edges of the stone’s facets like this stone here. However in this second sapphire without diffusion you will not be able to see any concentration of color on most facets.
@@NavneetGemsMineralsthxx but its hard sometimes. For eg, I have a pink sapphire and it is a ring so how should i do it
@@NavneetGemsMinerals can u make a pink sapphire example
واضح بغير المعالج انه في تركيز للون بالاطراف أيضا
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Thank you, first one is diffusion, second is not
Thank you for sharing your views.
#1 diffusion treated,🤔
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No 1- diffused
No 2-
Thank you for sharing your answer.
Which One is Good
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what is a diffusion?
The diffusion technique, which involves the addition of color-causing chemicnls during heat trentment, results in a thin layer of color at the surface of colorless or light-colored sapphire.
#1
Thank you for sharing.
2 diffused
Thank you for sharing views.
1 yes 1 no
Thank you for the sharing your views.
1st diffused, 2nd no diffusion
Great!
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1 diffused
Thanks for the sharing.
🎉🎉🎉🎉
Thanks!
#1 yes. #2 no
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One diffusion/ two no diffusion
Very nice to learn this.
Thank you for sharing your view. Stay in tune for more updates.
1st diffusion
perfect!
Ok
1 is real
thank you for sharing the your views.
1 diffusion.. 2 no diffusion
Thank you for sharing views.
1st treated, 2nd not
Thank you for the response.
No diffusion on stone 2
1was treated
Thank you for sharing your answer.
2 not diffused
Thanks for sharing.
1. Treated
2. Non treated
Thank you for sharing your views :)
1is diffusion 2is UNH
Great.
Diffusion kya hai aur yeh non diffusion jara hindi mai bolo
1 - not diffuse
2- diffused
Thank You For Sharing Your Views.
1
is natural sapphire
2
Is fusion Crystal
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1
Thank you for your response. For more videos Stay Tuned!
Bhai hindi mai bhi samjho
First is real the second is fake
Thank you for your response. For more videos Stay Tuned!
We have some emarld and rubi how we can catch you can you send us your address or your location please
1
Thank you for your answer.