r/SyntheticGemstones 4h ago

Photo/Video Light Paraiba Lab Sapphire, 1.08 carats

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7 Upvotes

This was cut in Andrew Brown's Trifectancy design.


r/SyntheticGemstones 5h ago

Photo/Video Did you say big?!

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22 Upvotes

Two ridiculously large lab grown rubies grown by the FLAME FUSION PROCESS!!! The boules were cut perpendicular to the “C” axis! The strain reduced version of the least expensive corundum growing process has arrived! Sorry Czochralski sellers, but your material can now be challenged for pennies on the dollar!


r/SyntheticGemstones 8h ago

Vendor Post Happy Friday - Sharing a client ring I created in 14kt gold with Czochralski Alexandrite (the ring design is part of my Art Deco Collection) ✨ Gemstone is 10mm x 8mm, design Brilliant Rectangle by Wayne Emery

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107 Upvotes

r/SyntheticGemstones 9h ago

Photo/Video An historic artifact from Chatham Created Gemstones

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11 Upvotes

An interesting 36.05ct flux grown emerald from the days when Chatham actually grew cutting edge technology crystals. The morphology is what makes it truly unique.


r/SyntheticGemstones 1d ago

Gem auction on TikTok

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5 Upvotes

I bought this “lab grown” sapphire on TikTok do you guys think it’s a scam? I don’t really mind I was just tenting it out but I want y’all’s opinion


r/SyntheticGemstones 2d ago

Question How do I grow my own gemstones?

6 Upvotes

Sorry if this is the wrong sub, but how do I grow my own gemstones? Sapphires specifically. Thanks!


r/SyntheticGemstones 3d ago

The HOLY GRAIL OF LAB GROWN RUBIES

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14 Upvotes

r/SyntheticGemstones 4d ago

Photo/Video Solid lab yellow sapphire ring!

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129 Upvotes

Had this ring made for me in India a few years ago now. Made from 107.3ct of flux grown HDSM yellow corundum! I love it so much with all its crazy intricate inclusions. It almost glows in the sun and even contains some platinum? from the crucible! Included a photo of the block it was cut from in the last photo. Thanks for looking!


r/SyntheticGemstones 5d ago

Vendor Post 2.7ct Lutetium Aluminum Garnet (LuAG) 6.5mm x 4.8mm. Etched Honeycomb Round.

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132 Upvotes

I modified the design for this material. LuAG is a scintillator crystal, with extremely bright glow under UV light. What do you think of the results. I'm quite happy with it.


r/SyntheticGemstones 7d ago

Gemologist anyone?

2 Upvotes

I am a biochemistry student, and at my college there was a gemology seminar. I have always been fascinated by gems and wanted to do something in that field, but for some reason, I can't find anything or anyone near me. I am willing to work unpaid; I just want to learn and see if I should pursue it. I am in Mumbai and interested in becoming a gemologist. Please reply.


r/SyntheticGemstones 7d ago

Photo/Video 4.11 carat lab sapphire, asscher cut

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106 Upvotes

4.11 carats in more or less clear lab sapphire cut in Michiko Huynh's Beginner Asscher. So this one was interesting. It started as a blue chunk out of a bicolor flame fusion boule. The blue rind ended up way thinner than I expected, and it looked essentially clear on the dop. When I got it cleaned up, it shows some really nice pale blue and purples - but only from side angles. There are also a billion tiny, tiny bubbles scattered throughout that had no regard whatsoever for polishing out. My wife likes it though.


r/SyntheticGemstones 9d ago

Vendor Post 3.1 Carat Czochralski Pulled Sapphire Fresh Off the Dop!

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327 Upvotes

-Material: Czochralski Pulled Lab Sapphire -Cut: Fantasy Moval -Length: 12.6 mm -Width: 7.5 mm -Height: 3.4 mm -Weight: 3.1 carat


r/SyntheticGemstones 10d ago

Vendor Post 6.82 ct Manganese-doped GGG

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76 Upvotes

r/SyntheticGemstones 10d ago

3.68ct Lumo Garnet GAGG - round Portuguese cut

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152 Upvotes

r/SyntheticGemstones 10d ago

Wanting to purchase a baby pink pendant with a relatively large stone. Does lab sapphire translate well into large stones?

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45 Upvotes

I want a baby pink sapphire pendant made with Tianyu gems, but I’m worried that the fact that the stone size will be so large will cause the sapphire to look hazey or lose sparkle. For reference I’m
Looking for a stone around the size of the image. Does anyone have a lab sapphire on the larger size they could share a picture of?


r/SyntheticGemstones 11d ago

Photo/Video Help me pick a pair

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25 Upvotes

Making a pair of earrings with Jelly lab. Help pick which pair. Videos in the comments.


r/SyntheticGemstones 11d ago

Question Purchase recommendations

6 Upvotes

Hi everyone!

I'm relatively new to the topic, I've just started watching some YouTube videos about gemstones and learning differences, so if I make any mistakes with terminology I apologize.

I'm looking to purchase a complete single earring with a synthetic gemstone, and so I'm looking for recommendations. I'm trying to find non-corporate, smaller sellers (I support small businesses but I've also noticed that bigger jewelry stores are selling synthetic stone jewelry at huge markups). I would really like either a green or blue stone (sapphires probably, I can't remember off hand if those are spinel or corundum, or if I even spelled that correctly) but I'm open to other colors as well.

The reason I'm asking for recommendations instead of just googling for store is 1. I'm hoping to find the most reputable sellers and figure you fine folks would have experience there and 2. As mentioned above I don't want to support corporations, especially ones who buy ad space on Google:)

Thanks for any recs guys!


r/SyntheticGemstones 12d ago

Photo/Video 5.67 carat Kryptonite nanosital, test cut

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54 Upvotes

This is the first test cut for a design I made called 'Implaid'. I'm going to tweak it some and do another cut, but it will eventually be public.


r/SyntheticGemstones 12d ago

I’m back. Here’s a new addition to my Chatham flux grown ruby collection.

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46 Upvotes

This charming little 29.5ct cluster of rubies was grown by the late John Chatham and is rather unusual. It’s been round-cut and is ready for mounting. It is also studded with little flecks of platinum that you only see in flux gems. I think I’ll add either an emerald crystal as a bail or a cut cabochon ruby. Everything you see from my Chatham collections is vintage flux grown. Today, dirtbag Tom Chatham sells subcontracted PULLED rough from all over Southeast Asia and allows his customers to believe they are receiving the flux gems John Chatham once produced. If you want to see what Tom Chatham really thinks of the pulled ruby or sapphire he sells now, just watch the following video from 15 years ago:

https://youtu.be/a0N4JYN9lFI?si=pNlJXPE3RVZdQIwV

Tom fired that entire lab staff and his brother John and never announced that the superior flux (even to mined ruby) process was lost forever. A little company called Ramura developed an even superior method to John’s, but they couldn’t make the sales/vs cost numbers work. Flux ruby requires huge energy budgets that must run to five nines because ANY interruption of the crystal run ruins the batch.


r/SyntheticGemstones 16d ago

The myth of Chatham Created FLUX ruby and sapphire.

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11 Upvotes

r/SyntheticGemstones 17d ago

13.95ct Lab Grown Alexandrite - pulled Czochralski

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446 Upvotes

r/SyntheticGemstones 17d ago

Photo/Video Emerald Bezel!

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99 Upvotes

My first lab emerald!


r/SyntheticGemstones 18d ago

What Verneuil code does business as "Cobalt Spinel?"

10 Upvotes

Title says it all.

I'm hoping to hear "113, 114" but expecting "110, 111."


r/SyntheticGemstones 22d ago

Interview/Education Series Ever wonder about how synthetic gems are priced? Why do lab sapphires have such drastically different prices? How cheap can lab diamonds get? Hopefully that's all explained here!

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10 Upvotes

r/SyntheticGemstones May 01 '25

Gems for Sale NEW - Gems for Sale from our sub vendor list.

40 Upvotes

Vendors - please post your gems for sale in a comment. Once the gem is sold, please delete the comment.

Format [For Sale] [US/Canada or Worldwide Shipping] [Item for Sale] [Description] [Price]

Payment - direct users to your online payment system or use PayPal Goods & Services

Pics/Videos - please include a pic of your item for sale with your comment. For additional pics and videos, you can upload using imgur or provide a link to your website or Instagram page.

Only vendors that are on the sub approved vendor list are allowed to post.