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Buy Round Shape 12 mm Gems

Round Shape 12 mm Gems Weight
Round Shape 12 mm Gems Size
Round Shape 12 mm Gems Clarity
Round Shape 12 mm Gems Price

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ID: 378276
Weight: 14.84ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 58.76
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ID: 600324
Weight: 6.39ct
Size: 12 mm (calibrated)
Clarity: VVS
Price: $ 30.53
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ID: 476805
Weight: 12.60ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 49.90
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ID: 699649
Weight: 5.48ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.73
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ID: 459551
Weight: 5.69ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 11.27
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ID: 401206
Weight: 7.27ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 23.99
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ID: 548384
Weight: 14.77ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 55.38
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ID: 723435
Weight: 4.06ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 146.16
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ID: 599364
Weight: 5.50ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.36
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ID: 361819
Weight: 25.21ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 33.28
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ID: 463933
Weight: 5.09ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.08
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ID: 463987
Weight: 4.87ct
Size: 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 8.77
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ID: 600297
Weight: 5.19ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.80
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ID: 495385
Weight: 6.50ct
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 42.90
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ID: 611438
Weight: 5.42ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.47
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ID: 369515
Weight: 8.09ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 34.60
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ID: 548390
Weight: 14.33ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 53.72
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ID: 706372
Weight: 7.82ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.95
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ID: 714932
Weight: 8.22ct
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 21.31
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ID: 600317
Weight: 7.24ct
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 94.62
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ID: 501042
Weight: 5.42ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 50.08
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ID: 600528
Weight: 12.82ct (total)
Size: 12 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 51.05
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ID: 600303
Weight: 6.20ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 29.62
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ID: 417856
Weight: 5.28ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.94
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ID: 724965
Weight: 9.10ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.38
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ID: 501184
Weight: 5.98ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 55.26
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ID: 715007
Weight: 15.42ct (total)
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 33.31
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ID: 611906
Weight: 5.45ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.59
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ID: 600529
Weight: 10.69ct (total)
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 42.57
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ID: 655866
Weight: 6.78ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.57
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ID: 438497
Weight: 14.23ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 56.35
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ID: 599367
Weight: 5.23ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 25.06
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ID: 360629
Weight: 8.14ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 42.98
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ID: 609032
Weight: 5.25ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 34.66
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ID: 548394
Weight: 13.21ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 49.52
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ID: 612865
Weight: 7.53ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 29.82
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ID: 438376
Weight: 14.02ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 55.52
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ID: 282974
Weight: 27.53ct (total)
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 41.29
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ID: 680006
Weight: 4.55ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 163.80
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ID: 618957
Weight: 6.16ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.14
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ID: 369513
Weight: 8.11ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.54
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ID: 569737
Weight: 6.14ct
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 45.23
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ID: 435118
Weight: 27.60ct (total)
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 36.43
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ID: 505427
Weight: 6.56ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 90.31
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ID: 607808
Weight: 5.35ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 35.32
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ID: 567282
Weight: 5.77ct
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 17.44
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ID: 619136
Weight: 9.43ct (total)
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 24.90
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ID: 505528
Weight: 6.37ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 53.15
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ID: 724230
Weight: 11.67ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.86
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ID: 378273
Weight: 13.48ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 53.38
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ID: 567158
Weight: 4.96ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 15.00
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ID: 501261
Weight: 5.99ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 55.34
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ID: 607810
Weight: 5.35ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 35.32
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ID: 438375
Weight: 15.39ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 60.95
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ID: 541484
Weight: 6.20ct
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 89.33
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ID: 599360
Weight: 5.64ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 27.02
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ID: 600304
Weight: 5.59ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.71
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ID: 464130
Weight: 6.01ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 11.90
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ID: 503800
Weight: 5.45ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.59
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ID: 505525
Weight: 7.09ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 73.94
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GemSelect Certified Store Reviews

GemSelect: Over 18 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I trust this company to deliver exactly what is offered. I have never had to return a selection of Gems. I appreciate the company's detailed description of their product. It helps this customer find mounts before the gems arrive. Any day of the year one can find a wide selection of gems, be it by price, color, cut, lot or single. Pricing does not jump all over the place and stays reasonable. Be assured your items will arrive in perfect condition as the company's shipping department does a great job.

Posted By Miss Sherrie in August, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

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.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I trust this company to deliver exactly what is offered. I have never had to return a selection of Gems. I appreciate the company's detailed description of their product. It helps this customer find mounts before the gems arrive. Any day of the year one can find a wide selection of gems, be it by price, color, cut, lot or single. Pricing does not jump all over the place and stays reasonable. Be assured your items will arrive in perfect condition as the company's shipping department does a great job.

Posted By Miss Sherrie in August, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate
Enlarged Gemstone Image