Buy 12 mm Round Calibrated Gemstones from GemSelect

Item Description
Stone Type:	Loose Pearl
Pearl Weight:	13.34 ct Pearl
Pearl Shape:	Spherical Pearl
Pearl Size:	12.3 mm Pearl
Pearl Color:	Silver Pearl
Pearl Clarity:	Opaque Pearl
Pearl Origin:	South Sea Pearl
Pearl Treatment:	Cultured Saltwater
Pearl Quantity:	1
Pearl Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Star Sapphire
Star Sapphire Weight:	10.97 ct Star Sapphire
Star Sapphire Shape:	Round Cabochon Star Sapphire
Star Sapphire Size:	11.5 mm Star Sapphire
Star Sapphire Color:	Light Grey Star Sapphire
Star Sapphire Clarity:	Opaque Star Sapphire
Star Sapphire Origin:	Myanmar Star Sapphire
Star Sapphire Treatment:	Untreated
Star Sapphire Quantity:	1
Star Sapphire Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Pearl
Pearl Weight:	13.49 ct Pearl
Pearl Shape:	Spherical Pearl
Pearl Size:	12.3 mm Pearl
Pearl Color:	Dark Gray Pearl
Pearl Clarity:	Opaque Pearl
Pearl Origin:	South Sea Pearl
Pearl Treatment:	Cultured Saltwater
Pearl Quantity:	1
Pearl Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Pearl
Pearl Weight:	12.95 ct Pearl
Pearl Shape:	Spherical Pearl
Pearl Size:	12.1 mm Pearl
Pearl Color:	Medium-Dark Grey Pearl
Pearl Clarity:	Opaque Pearl
Pearl Origin:	South Sea Pearl
Pearl Treatment:	Cultured Saltwater
Pearl Quantity:	1
Pearl Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Star Sapphire
Star Sapphire Weight:	9.28 ct Star Sapphire
Star Sapphire Shape:	Round Cabochon Star Sapphire
Star Sapphire Size:	11.7 mm Star Sapphire
Star Sapphire Color:	Grey Star Sapphire
Star Sapphire Clarity:	Opaque Star Sapphire
Star Sapphire Origin:	Myanmar Star Sapphire
Star Sapphire Treatment:	Untreated
Star Sapphire Quantity:	1
Star Sapphire Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Pearl
Pearl Weight:	13.67 ct Pearl
Pearl Shape:	Spherical Pearl
Pearl Size:	12.3 mm Pearl
Pearl Color:	Dark Silver Pearl
Pearl Clarity:	Opaque Pearl
Pearl Origin:	South Sea Pearl
Pearl Treatment:	Cultured Saltwater
Pearl Quantity:	1
Pearl Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Pearl
Pearl Weight:	13.62 ct Pearl
Pearl Shape:	Spherical Pearl
Pearl Size:	12.4 mm Pearl
Pearl Color:	Silver Pearl
Pearl Clarity:	Opaque Pearl
Pearl Origin:	South Sea Pearl
Pearl Treatment:	Cultured Saltwater
Pearl Quantity:	1
Pearl Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Pearl
Pearl Weight:	13.25 ct Pearl
Pearl Shape:	Spherical Pearl
Pearl Size:	12.3 mm Pearl
Pearl Color:	Medium-Dark Grey Pearl
Pearl Clarity:	Opaque Pearl
Pearl Origin:	South Sea Pearl
Pearl Treatment:	Cultured Saltwater
Pearl Quantity:	1
Pearl Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Pearl
Pearl Weight:	13.72 ct Pearl
Pearl Shape:	Spherical Pearl
Pearl Size:	12.4 mm Pearl
Pearl Color:	Yellowish Silver Pearl
Pearl Clarity:	Opaque Pearl
Pearl Origin:	South Sea Pearl
Pearl Treatment:	Cultured Saltwater
Pearl Quantity:	1
Pearl Certificate:	GemSelect
Product Description:

Item Description
Stone Type:	Loose Pearl
Pearl Weight:	12.39 ct Pearl
Pearl Shape:	Spherical Pearl
Pearl Size:	12 mm Pearl
Pearl Color:	Dark Silver Pearl
Pearl Clarity:	Opaque Pearl
Pearl Origin:	South Sea Pearl
Pearl Treatment:	Cultured Saltwater
Pearl Quantity:	1
Pearl Certificate:	GemSelect
Product Description:

Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Round shapes, facet cut and cabochon gems available now in 12 mm diameter size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often around 0.3 mm or slightly higher even. This small variance can usually be accommodated for standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

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Gemstone Information

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Overall Rating -> 10

The website is very easy to use. The search function, filter and sort functions are very helpful.

Posted By Sboro in August, 2023

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Overall Rating -> 10

The website is easy to search, the variety of gems is excellent and the educational information is interesting and helpful! Love browsing and shopping the GemSelect website!

Posted By Happiness in January, 2024

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Overall Rating -> 9

Not easy enough to buy by exact size, and many stones aren't carbechon curved shape on top

Posted By Erick in July, 2023

Source: Bizrate

Overall Rating -> 10

I enjoyed browsing though different varieties of rubies. I felt that the experience was simple and easy to navigate!

Posted By Daws in July, 2023

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Overall Rating -> 9

It went well

Posted By Rob in December, 2023

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Overall Rating -> 9

Overall good, shipping prices just seem a little on the high side.

Posted By Steve in August, 2023

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Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

Posted By Mr. Bezel in July, 2023

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Overall Rating -> 9

over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

Posted By Iggywiggly in January, 2024

Source: Bizrate

Overall Rating -> 10

This is only the second time I have ordered from GemSelect. I am a prolific gemstone collector and I wish I had found this site sooner!

Posted By Beachcomber in September, 2023

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Overall Rating -> 9

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

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Overall Rating -> 10

Great selection and excellent website.

Posted By JBW in October, 2023

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Overall Rating -> 10

Todo muy bien en la compra ahora esperar recibir el pedido.

Posted By MAGSMX in August, 2023

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Overall Rating -> 9

Easy to use. Limited supply of higher quality gemstones.

Posted By Newfguy in February, 2024

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Overall Rating -> 10

It was easy to navigate and I hope that the gem is as nice as the picture

Posted By 1 in April, 2024

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Overall Rating -> 10

I particularly like information about product provided with purchase.

Posted By Dick in May, 2023

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Selected Gemstones

Gemstones A-Z

Buy Round Shape 12 mm Gems

13.34 carat Gray Pearl, Ball loose Pearl from South Sea, Natural Gem, 12.3 mm

Natural Pearl, Qty: 1 pc | 13.34 carat weight Pearl

10.97 ct Gray Star Sapphire, 11.5 mm Round Cut From Myanmar

Natural Star Sapphire, Qty: 1 pc | 10.97 carat weight Star Sapphire

13.49 carat Gray Pearl, Ball loose Pearl from South Sea, Natural Gem, 12.3 mm

Natural Pearl, Qty: 1 pc | 13.49 carat weight Pearl

12.95 carat Gray Pearl, Ball loose Pearl from South Sea, Natural Gem, 12.1 mm

Natural Pearl, Qty: 1 pc | 12.95 carat weight Pearl

9.28 ct Gray Star Sapphire, 11.7 mm Round Cut From Myanmar

Natural Star Sapphire, Qty: 1 pc | 9.28 carat weight Star Sapphire

13.67 carat Gray Pearl, Ball loose Pearl from South Sea, Natural Gem, 12.3 mm

Natural Pearl, Qty: 1 pc | 13.67 carat weight Pearl

13.62 carat Gray Pearl, Ball loose Pearl from South Sea, Natural Gem, 12.4 mm

Natural Pearl, Qty: 1 pc | 13.62 carat weight Pearl

13.25 carat Gray Pearl, Ball loose Pearl from South Sea, Natural Gem, 12.3 mm

Natural Pearl, Qty: 1 pc | 13.25 carat weight Pearl

13.72 carat Gray Pearl, Ball loose Pearl from South Sea, Natural Gem, 12.4 mm

Natural Pearl, Qty: 1 pc | 13.72 carat weight Pearl

12.39 carat Gray Pearl, Ball loose Pearl from South Sea, Natural Gem, 12 mm

Natural Pearl, Qty: 1 pc | 12.39 carat weight Pearl

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