ItsJustAnt
Rough_Rock
- Joined
- Jun 23, 2022
- Messages
- 18
10.2 ct untreated natural seems suspect although there is always the possibility that you got lucky. Is the clarity very clean?
There is no way a 10ct unheated pink sapphire is sold with only a handwritten note attached to it. It has to be synthetic.
That, or you are indeed very lucky.
Don’t try and guess, bring it to a gem lab. If it is synthetic they will be able to tell you right away.
...
So, Do both synthetic and natural occuring glow pink under long wave UV?
I did a float test and it seems slightly magnetic to a 10lb neodymium magnet.
So, Do both synthetic and natural occuring glow pink under long wave UV?
Hello and welcome to the forum! As my fellow PSers have already mentioned, there really aren't any home tests we can perform to determine whether a corundum is natural or synthetic. They have the same optical properties, along with an identical refractive index and specific gravity. A lab will need to identify microscopic anomalies to separate the two. However, if you have a refractometer, you can easily separate natural sapphire from a simulant (such as glass).
The only labs here in the States that I would trust to accurately test corundum are the GIA in NY (or CA, but you're closer to NY) or AGL in NY. It's a very simple process to send it in via mail. If you really believe this stone could be natural pink sapphire, then it may be worth the cost. Good luck!
Submission Guidelines — American Gemological Laboratories
www.aglgemlab.com
If real, thousands of dollars. If synthetic, a few dollars. My gut feel is synthetic though based on the information presented thus far.
OP, maybe take it to a local G.G. just to get their opinion on it first. They'd charge you very little in comparison, I'm sure. If he or she feels strongly one way or the other, then you can decide whether it's worth it to send it out to the GIA. Good luck!
Sorry, new... Local G.G.? Haha
Graduate Gemologist. Meaning someone who has the knowledge and qualifications. In many cases a trained eye and a quality loupe/microscope can be all that's necessary to determine with relative certainty whether a stone is natural or synthetic. If the gemologists looks at it and says they believe it's a natural stone, it will most likely be worth it to send it for certification as this is what will allow you to sell it at a high price.
Graduate Gemologist. Meaning someone who has the knowledge and qualifications. In many cases a trained eye and a quality loupe/microscope can be all that's necessary to determine with relative certainty whether a stone is natural or synthetic. If the gemologists looks at it and says they believe it's a natural stone, it will most likely be worth it to send it for certification as this is what will allow you to sell it at a high price.
Gotcha! Wasn't sure of the acronym haha. Anywhere I can find a list of GGs? Then I can go from there.
Oh and make sure the person you choose has graduate gemologist credentials (you can see this by clicking on their name). Because people on this list can also be A.J.P.'s, which is very different.
Thank you a ton! Now hopefully I have somewhere to start! TBH, when I bid on the auction, I had no clue there were gemstones, I thought it was just a mineral lot, and only two other people even seemed interested haha... come to find out this pink sapphire was in it, along with a bunch of other stuff! 3 or 4 5carat Garnets, some 2.8c Peridot, possibly a Ruby or two, two deconstructed pearl necklaces (one white, one Tahitian), and a bunch of other stuff that I don't know what they are lol
it looks to be quite pretty
if it turns out to not be natural id have it set in a silver pendent and wear it / gift it
Thank you! The pictures don't do it justice, I have a light box coming later this week, if it works out I can get some better pictures! If it's real, and worth a few grand, I'd probably put it towards a down payment on a house! The fiance and I are at that kinda point in life haha.
I believe I see curved growth lines in a number of these photos, which is a hallmark for synthetic sapphire. Given that the stone is large and very clean, the curved growth lines, the fact that it was sold in a lot with glass stones (the "synthetic" spinel) and the price, I am confident that this stone is a synthetic sapphire at best.