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Buy Round Shape 12 mm Gems

(10)
Round Shape 12 mm Gems Weight Round Shape 12 mm Gems Size Round Shape 12 mm Gems Clarity Round Shape 12 mm Gems Price Round Shape 12 mm Gems Origin
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Round Shape 12 mm Gems Single
Round Shape 12 mm Gems Pairs
Round Shape 12 mm Gems Lots
Round Shape 12 mm Gems Faceted
Round Shape 12 mm Gems Cabochons
All Sizes Size Ranges Calibrated Sizes
8 x 8 mm 9 x 9 mm 10 x 10 mm 11 x 11 mm 11 mm 12 mm 12 x 10 mm 12 x 12 mm 13 mm 13 x 13 mm 14 x 14 mm 15 x 15 mm 16 x 12 mm 16 mm 17 x 17 mm 18 x 13 mm 20 x 15 mm
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Photos are of Actual Products for Sale
6.88ct Loose Rose Quartz | 6.88 ct Round Petal Cut Rose Quartz, 11.9 mm From South Africa, Photo A

6.88 ct Round Petal Cut Rose Quartz, 11.9 mm From South Africa

Natural Rose Quartz, Qty: 1 pc | 6.88 carat weight Rose Quartz

6.88ct1 Piece
$ 37.84
11.9 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 6.88 ct Rose Quartz
Rose Quartz Shape: Round Petal Cut Rose Quartz
Rose Quartz Size: 11.9 mm Rose Quartz
Rose Quartz Color: Light Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: South Africa Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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5.06ct Loose Rose Quartz | 5.06 ct Round Concave Cut Rose Quartz, 12 mm From Brazil, Photo A

5.06 ct Round Concave Cut Rose Quartz, 12 mm From Brazil

Natural Rose Quartz, Qty: 1 pc | 5.06 carat weight Rose Quartz

5.06ct1 Piece
$ 20.21
12 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 5.06 ct Rose Quartz
Rose Quartz Shape: Round Concave Cut Rose Quartz
Rose Quartz Size: 12 mm Rose Quartz
Rose Quartz Color: Very Light Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: Brazil Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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5.64ct Loose Rose Quartz | 5.64 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil, Photo A

5.64 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil

Natural Rose Quartz, Qty: 1 pc | 5.64 carat weight Rose Quartz

5.64ct1 Piece
$ 22.52
12.1 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 5.64 ct Rose Quartz
Rose Quartz Shape: Round Concave Cut Rose Quartz
Rose Quartz Size: 12.1 mm Rose Quartz
Rose Quartz Color: Very Light Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: Brazil Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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5.50ct Loose Rose Quartz | 5.5 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil, Photo A

5.5 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil

Natural Rose Quartz, Qty: 1 pc | 5.50 carat weight Rose Quartz

5.50ct1 Piece
$ 21.97
12.1 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 5.50 ct Rose Quartz
Rose Quartz Shape: Round Concave Cut Rose Quartz
Rose Quartz Size: 12.1 mm Rose Quartz
Rose Quartz Color: Very Light Rose Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: Brazil Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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5.59ct Loose Rose Quartz | 5.59 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil, Photo A

5.59 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil

Natural Rose Quartz, Qty: 1 pc | 5.59 carat weight Rose Quartz

5.59ct1 Piece
$ 20.29
12.1 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 5.59 ct Rose Quartz
Rose Quartz Shape: Round Concave Cut Rose Quartz
Rose Quartz Size: 12.1 mm Rose Quartz
Rose Quartz Color: Light Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: Brazil Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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5.66ct Loose Rose Quartz | 5.66 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil, Photo A

5.66 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil

Natural Rose Quartz, Qty: 1 pc | 5.66 carat weight Rose Quartz

5.66ct1 Piece
$ 22.61
12.1 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 5.66 ct Rose Quartz
Rose Quartz Shape: Round Concave Cut Rose Quartz
Rose Quartz Size: 12.1 mm Rose Quartz
Rose Quartz Color: Light Peach Rose Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: Brazil Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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6.06ct Loose Rose Quartz | 6.06 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil, Photo A

6.06 ct Round Concave Cut Rose Quartz, 12.1 mm From Brazil

Natural Rose Quartz, Qty: 1 pc | 6.06 carat weight Rose Quartz

6.06ct1 Piece
$ 24.20
12.1 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 6.06 ct Rose Quartz
Rose Quartz Shape: Round Concave Cut Rose Quartz
Rose Quartz Size: 12.1 mm Rose Quartz
Rose Quartz Color: Light Rose Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: Brazil Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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5.23ct Loose Rose Quartz | 5.23 ct Round Concave Cut Rose Quartz, 12 mm From Brazil, Photo A

5.23 ct Round Concave Cut Rose Quartz, 12 mm From Brazil

Natural Rose Quartz, Qty: 1 pc | 5.23 carat weight Rose Quartz

5.23ct1 Piece
$ 20.88
12 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 5.23 ct Rose Quartz
Rose Quartz Shape: Round Concave Cut Rose Quartz
Rose Quartz Size: 12 mm Rose Quartz
Rose Quartz Color: Light Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: Brazil Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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7.65ct Loose Rose Quartz | 7.65 ct Round Petal Cut Rose Quartz, 12.3 mm From South Africa, Photo A

7.65 ct Round Petal Cut Rose Quartz, 12.3 mm From South Africa

Natural Rose Quartz, Qty: 1 pc | 7.65 carat weight Rose Quartz

7.65ct1 Piece
$ 42.08
12.3 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 7.65 ct Rose Quartz
Rose Quartz Shape: Round Petal Cut Rose Quartz
Rose Quartz Size: 12.3 mm Rose Quartz
Rose Quartz Color: Light Rose Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: South Africa Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
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Add to Cart
5.53ct Loose Rose Quartz | 5.53 ct Round Concave Cut Rose Quartz, 12 mm From Brazil, Photo A

5.53 ct Round Concave Cut Rose Quartz, 12 mm From Brazil

Natural Rose Quartz, Qty: 1 pc | 5.53 carat weight Rose Quartz

5.53ct1 Piece
$ 22.08
12 mm
Item Description
Stone Type: Loose Rose Quartz
Rose Quartz Weight: 5.53 ct Rose Quartz
Rose Quartz Shape: Round Concave Cut Rose Quartz
Rose Quartz Size: 12 mm Rose Quartz
Rose Quartz Color: Light Pink Rose Quartz
Rose Quartz Clarity: Transparent Rose Quartz
Rose Quartz Origin: Brazil Rose Quartz
Rose Quartz Treatment: Untreated
Rose Quartz Quantity: 1
Rose Quartz Certificate: GemSelect
Product Description:
View Details
Add to Cart

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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Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023
Source: Bizrate

Overall Rating -> 7 star ratings

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

Posted By Bobk in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Pleasant.

Posted By Mk in November, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Very good, very fast, everything as described.

Posted By B in October, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Best place to buy gem stones, dont bother shopping else where. Prices are great, no issues with shipping and customer service is the best.

Posted By J in December, 2023
Source: Bizrate

Overall Rating -> 8 star ratings

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Wonderful selection of gems to choose from. Have made many purchases and was only slightly disappointed once.

Posted By Teemo in February, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I loved the opportunity to shop on a website that I could trust 👍

Posted By Will J. Lover in September, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent site.

Posted By Boru in December, 2023
Source: Bizrate

Overall Rating -> 9 star ratings

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

No issues at all. It was great.

Posted By LJXK in May, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

Posted By Meow in June, 2023
Source: Bizrate

Overall Rating -> 10 star ratings

Selection and purchasing online was very easy

Posted By Aggy in January, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

The selection and filtering is a little overwhelming, but that's only because there is so much to choose from.

Posted By Kasper in June, 2023
Source: Bizrate
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