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Buy Heart Shape 12x12 mm Gems

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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (33): Heart Shape 12x12 mm Gems Clear All
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Lavender Blue Chalcedony Gem - 6.7ct Heart Cabochon (ID: 274068)

Heart Blue Chalcedony

6.69 ct (total 13.37ctw)
12.2 x 12.1 mm
$ 50.81
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Black Spinel Gem - 7.1ct Heart Rose-Cut (ID: 328237)

Heart Black Spinel

7.13 ct (total 14.26ctw)
12.1 x 11.8 mm
$ 71.30
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Lively Green Peridot Gem - 5.7ct Heart Facet (ID: 379031)

Heart Green Peridot

5.7ct
12.1 x 11.9 mm
$ 366.08
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Lavender Blue Chalcedony Gem - 6.8ct Heart Cabochon (ID: 274086)

Heart Blue Chalcedony

6.76 ct (total 13.52ctw)
12.1 x 12 mm
$ 51.38
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Black Spinel Gem - 7.1ct Heart Rose-Cut (ID: 328318)

Heart Black Spinel

7.11 ct (total 14.22ctw)
12.1 x 11.8 mm
$ 71.10
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Black Spinel Gem - 6.6ct Heart Rose-Cut (ID: 328239)

Heart Black Spinel

6.56 ct (total 13.12ctw)
12.1 x 11.7 mm
$ 65.60
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Lavender Blue Chalcedony Gem - 6.5ct Heart Cabochon (ID: 324254)

Heart Blue Chalcedony

6.5ct
12.3 x 11.8 mm
$ 16.15
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Lavender Blue Chalcedony Gem - 6.6ct Heart Cabochon (ID: 274070)

Heart Blue Chalcedony

6.64 ct (total 13.27ctw)
12.2 x 12.1 mm
$ 50.43
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Black Spinel Gem - 7ct Heart Rose-Cut (ID: 328245)

Heart Black Spinel

7.02 ct (total 14.04ctw)
12.1 x 11.8 mm
$ 70.20
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Black Spinel Gem - 6.7ct Heart Rose-Cut (ID: 328236)

Heart Black Spinel

6.73 ct (total 13.46ctw)
12.1 x 11.8 mm
$ 67.30
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Black Spinel Gem - 6.7ct Heart Rose-Cut (ID: 328309)

Heart Black Spinel

6.74 ct (total 13.48ctw)
12.1 x 11.8 mm
$ 67.40
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Black Spinel Gem - 6.5ct Heart Rose-Cut (ID: 328238)

Heart Black Spinel

6.51 ct (total 13.02ctw)
12.1 x 11.9 mm
$ 65.10
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Multicolor Green Malachite Gem - 8.3ct Heart Cabochon (ID: 306724)

Heart Green Malachite

8.3ct
12.1 x 12.1 mm
$ 10.84
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Black Spinel Gem - 7.2ct Heart Rose-Cut (ID: 328242)

Heart Black Spinel

7.19 ct (total 14.37ctw)
12 x 11.6 mm
$ 71.85
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Black Spinel Gem - 6.9ct Heart Rose-Cut (ID: 328356)

Heart Black Spinel

6.93 ct (total 13.85ctw)
12.1 x 11.8 mm
$ 69.25
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Black Spinel Gem - 7ct Heart Rose-Cut (ID: 328246)

Heart Black Spinel

6.97 ct (total 13.94ctw)
12 x 11.7 mm
$ 69.70
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Lemon Quartz Gem - 7ct Heart Checkerboard (double sided) (ID: 417131)

Heart Yellow Quartz

7ct
12.5 x 12.2 mm
$ 21.09
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Black Spinel Gem - 7ct Heart Rose-Cut (ID: 328247)

Heart Black Spinel

6.97 ct (total 13.94ctw)
12.1 x 11.6 mm
$ 69.70
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Black Spinel Gem - 7.3ct Heart Rose-Cut (ID: 328314)

Heart Black Spinel

7.33 ct (total 14.66ctw)
11.8 x 12 mm
$ 79.99
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Black Spinel Gem - 6.8ct Heart Rose-Cut (ID: 328316)

Heart Black Spinel

6.78 ct (total 13.56ctw)
12.1 x 11.7 mm
$ 67.80
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Black Spinel Gem - 7ct Heart Rose-Cut (ID: 328311)

Heart Black Spinel

6.97 ct (total 13.94ctw)
12.1 x 11.7 mm
$ 69.70
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Heart Shape 12x12 mm Gems
Some people by gems by color or price, but for many, it may be better to buy gems by size - especially if you're in need to a gem to replace another previous item that was lost or damaged: Calibrated heart shaped facet cut gems and cabochon gems in 12 x 12 mm size. Buy a wide range of calibrated gemstones by size at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not meant nor 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.

Certified Customer Reviews
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Easy to shop through gemselect and will look there for future purchases.
Posted By Childcapo in February, 2019
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Overall Rating -> 10 star ratings
good value
Posted By Don in February, 2019
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It was super easy to browse all the gemstones and find exactly what you wanted. The prices were great and the checkout process was smooth. Seems like a great site, will definitely come back to find more in the future.
Posted By JMWatch Guy in February, 2019
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Overall Rating -> 9 star ratings
Ive always been pleased with quality and truth of gems rating I am a gemmologist and really like the descriptions as well . i.e cut, colour and quality Sometimes Ill choose GemSelect rather than a local wholesaler because of my regard for their quality and truth
Posted By Mango in February, 2019
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I will continue to utilize gemselect in my business as a jeweler.
Posted By Julie in February, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
Very good selection, easy to navigate site and very reasonable prices. I look forward to receiving the gems and if they are everything they appeared to be I will be extremely happy. Definitely likely to purchase from this site again.
Posted By Anthony in January, 2019
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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