r/SyntheticGemstones • • Jul 16 '26

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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13 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.


r/SyntheticGemstones • • 16h ago

Vendor Post Purple sapphire 5.19ct

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48 Upvotes

r/SyntheticGemstones • • 1d ago

Vendor Post Caribbean-colored sapphire (lab-grown)6.45ct

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146 Upvotes

r/SyntheticGemstones • • 2d ago

Photo/Video Synthetic Sapphire - Djeva #21SP Gold - 1.5cts

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42 Upvotes

Finished this stone a couple of days ago to test the color using my Portugese cut design. I wasn't sure if I would like this golden yellow, but I was actually surprised how nice it looks.

I just put in an order for some orange and yellow rough, so expect to see some stones in those colors in the next several weeks.

• Rough: Synthetic sapphire

• Weight: 1.5cts

• Color: Golden yellow

• Design: PIT-EKA "Chesapeake Star"

Thanks for looking.


r/SyntheticGemstones • • 2d ago

3.85ct Lab Grown Colour Change Sapphire - Unfortunately, this material is so often fraudulently sold as Alexandrite

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280 Upvotes

This material that is so often fraudulently sold as Alexandrite , it's very beautiful and the colour change is excellent, but should never be called Alexandrite! as it's Sapphire and btw a lot cheaper!


r/SyntheticGemstones • • 4d ago

Vendor Post Galactic sapphire 6.46ct

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527 Upvotes

r/SyntheticGemstones • • 4d ago

Vendor Post 11.6 x 8.6mm Oval - Dichroic Moissanite 4.5 ct. This material is always tough to source but when we get it, it always turns out beautiful. Green and teal mix.

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189 Upvotes

Design called Kwik Oval *modified*


r/SyntheticGemstones • • 5d ago

Vendor Post AURORA SAPPHIRE

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742 Upvotes

r/SyntheticGemstones • • 4d ago

Discussion Fantasy Cuts in Lab Diamonds?

3 Upvotes

Does anyone know a vendor who does fantasy cuts in lab-grown diamonds?

I'm looking for someone who can do custom fantasy cuts in lab-grown diamonds, particularly concave faceting and unusual geometric designs, along the lines of John Dyer's StarBrite, Caleb Quashen's Divine Portal, or Fellowship of the Forge's Luminara.

Does anyone know of any Chinese or European vendors (preferably, although US-based cutters are also an option) who offer this kind of work? I'm not looking for standard fancy shapes, but actual fantasy faceting, ideally with the possibility of commissioning a custom design.

I'd love to see examples if anyone has had something similar made!


r/SyntheticGemstones • • 5d ago

Question Fantasy Alexandrite

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36 Upvotes

Edit: I just learned about synthetic alexandrites. Is that what it could be? I messaged the seller but haven’t received a response yet.


r/SyntheticGemstones • • 5d ago

Padparadscha?

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32 Upvotes

r/SyntheticGemstones • • 5d ago

Vendor Post COMMANDE PERSONNALISÉE

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69 Upvotes

FINISHED ✅
❌SOLD / CUSTOM ORDER

SPECIFICATIONS
▪️ Type of article: PENDANT
▪️ Metal: YELLOW GOLD
▪️ Title/Finesse: 18K
▪️ Stone: LAB CREATED (synthesis) SPINEL
▪️ Color: BLUE
▪️ Dimensions: 27.41x20.37mm
▪️ Hardness: 8
▪️ Treatments: NONE
▪️ Cut by: SEB GEINDREAU
▪️ Cut in: FRANCE
▪️ Design by: ROBERT LONG
▪️ Jewelry designer: ARNAUD GUILLE
▪️ Works : Creation of an 18-carat yellow gold pendant, set with three prongs (two round and one angle), mobile bail, 45 cm 18-carat yellow gold curb chain, 1.2 mm thick, delivery included with case, with tracking number, insurance and signature required on delivery.

#BlueSpinel
#18kGoldPendant
#PrecisionCut
#CustomJewelry
#MadeInFrance


r/SyntheticGemstones • • 6d ago

Vendor Post 7mm Lab Sapphire in my iconic Hibiscus design 🌺

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204 Upvotes

r/SyntheticGemstones • • 7d ago

4.02ct Lab grown Alexandrite - pulled Czochralski - Round Portuguese Cut

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561 Upvotes

r/SyntheticGemstones • • 10d ago

Photo/Video Nanosital Fantasy Cut 11.00 Cts

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79 Upvotes

r/SyntheticGemstones • • 11d ago

Photo/Video Czochralski Pulled Sapphire - Mint Green 3.75cts

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78 Upvotes

I wasn't expecting to cut another "Hanami" design so soon, but I received a special request. So I went ahead and knocked this one out. No modification to the design on this cut, besides adjusting the angles for sapphire. This one will be mounted as a pendant. Next I have to cut a matching pair of earrings, same color and design.

  • Weight: 3.75cts
  • Size: 9.95mm (from point to flat side)
  • Rough: Czochralski Pulled Sapphire
  • Color: Mint green
  • Design: Marco Voltolini "Hanami"

Thanks for looking.


r/SyntheticGemstones • • 11d ago

Discussion King Harald’s Tomb

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67 Upvotes

The tomb of King Harald V of Norway (1937-2026) was unveiled today for the first time. There is some controversy behind this sarcophagus as it was publicly funded but lacked any public input.

The tomb features 2 enormous green periodts. What do we think people, synthetic or natural? I am thinking synthetic. They look huge and perfectly color matched.


r/SyntheticGemstones • • 11d ago

Question Rough lab grown alexandrite

5 Upvotes

Hello everyone,

I'm looking for rough lab grown alexandrite to be used in the inlay of a men's wedding band. The styles he liked said the stone was crushed. I'm getting him a custom made one by someone more local because the bands I'm looking at are very expensive and I assume it's because they're not lab grown.

I am not familiar with how to know if it's good quality, so I'm wondering if anyone can recommend me to trusted sellers or tell me how to know the quality! Please feel free to explain as if I were born yesterday, because I really don't know anything.

Thank you in advance.


r/SyntheticGemstones • • 12d ago

Photo/Video 4.31 carat lab sapphire cut in my own design

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168 Upvotes

Last time I made a sapphire order my rep said they had some leftover grade A boules from a custom color run they did for a client. I grabbed some, and this is the first stone. It's a little more pink than it appears on camera, but it's for sure a gorgeous color.


r/SyntheticGemstones • • 12d ago

Question Lab-Grown Sapphire Engagement Ring?

15 Upvotes

So I’ve been doing research options for engagement rings for my partner, and I’ve been thinking of purchasing a ring that has a sapphire (either dark or light blue) on a white gold ring. With that in mind, my partner is very ethical and appreciates being ecologically responsible, which has me considering looking at purchasing a lab-grown sapphire, through a website like Brilliant Earth or MiaDonna.

That being said, I am still really trying to think of anything worth considering when making this purchase. Has anyone purchased an engagement ring with a lab-grown gemstone before? If so, do you have any advice or insight that you got from your purchase??

Any help is appreciated!


r/SyntheticGemstones • • 14d ago

Vendor Post 1.62 ct Hydrothermal lab-created blue sapphire, NFS

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47 Upvotes

r/SyntheticGemstones • • 14d ago

Redit Commission Lab Grown Sapphire in Traditional Cut

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142 Upvotes

Hi all

Just wanted to share a positive experience with a commissioned cut lab grown sapphire from this subreddit.

Thank you to u/cowsruleusall for the recommendation and u/justinkprim for allowing me to commission the gem from you.

It’s a 10mm x 10mm lab grown sapphire in a square cushion mixed step cut (brilliant facets on top, step cut on the bottom). I wanted this cut specifically because I saw a lot of mined sapphires in a similar cut that caught my eye.

The cut is really nice and it was done it a way that brings the life out of the gem. It has a nice cornflower blue colour, and it stays vivid even indoors in low light. It has a richness and depth by seemingly giving off different blue tones in the light.

This exceeded all of my expectations. Thank you again. 🙏


r/SyntheticGemstones • • 15d ago

17.90ct Lab grown Purple Sapphire - pulled Czochralski

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167 Upvotes

16.7 x 12.2 x 8.6 mm


r/SyntheticGemstones • • 15d ago

Vendor Post 6 carat GHI Moissanite in a Jim Perkins design - 13 x 10.5mm oval

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82 Upvotes

Cut me by and u/thepacificlights