Calibrated Heart Shape Gemstones 7 x 7 mm size from GemSelect

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 7 x 7 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.

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Gemstones A-Z

Buy Heart Shape 7x7 mm Gems

44.53 ct Oval Tiger's Eye Matrix, 35.6 x 21.5 mm From Mexico

1.51 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 11.6 x 8.4 mm

34.18 ct Baguette Maw-Sit-Sit, 19.7 x 16.3 mm From Myanmar

2.34 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.1 x 4.2 mm

1.19 ct Oval Strawberry Quartz, 7 x 5.2 mm From Russia

1.97 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 7.1 x 5.1 mm

2.21 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5 x 3 mm

0.54 ct Loose Yellow Sapphire, 4.1 x 4.1 mm Cushion Cut From Tanzania

8.1 ct Oval Concave Cut Smoky Quartz, 12.1 x 10.1 mm From Brazil

2.95 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 6 x 4 mm

5.4 ct Black Star Sapphire, 10.1 x 7.7 mm Oval Cut From Thailand

0.97 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6 x 3.8 mm

1.25 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.6 x 5 mm

2.53 carat Yellow Citrine, Cushion loose Citrine from Brazil, Natural Untreated Gem, 9.6 x 6.9 mm

8.52 ct Carved Prehnite, 13.8 x 10.1 mm From South Africa

3.41 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

4.46 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 7.3 mm

5.81 carat Pink Morganite, Pear loose Morganite from Afghanistan, Natural Untreated Gem, 14 x 10.1 mm

9.45 carat Pear Larimar, loose Certified Larimar from the Dominican Republic, Natural Untreated Gem, 16.2 x 11.6 mm

0.66 ct Oval Chrysoberyl Cat's Eye, 5.9 x 4.8 mm From Sri Lanka

1.17 carat Pear Shape Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gem, 8.5 x 5.3 mm

15.07 ct Cushion Jasper, 23.5 x 18.1 mm From Indonesia

8.47 ct Round Cut Smoky Quartz, 13.8 mm From Brazil

17.4 ct Oval Hematite, 18.1 x 9 mm From Brazil

1.09 carat Orange Hessonite Garnet, Round loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6 mm

64.93 ct Oval Jasper, 39.3 x 38 mm From Indonesia

0.86 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.2 x 4.2 mm

1.62 carat Orange Zircon, Emerald Cut loose Zircon from Tanzania, Natural Untreated Gem, 7.4 x 5.2 mm

1.75 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 5.1 x 4 mm

1.34 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.4 x 6 mm

11.77 ct Blue Green Grandidierite, 16.9 x 13.8 mm Oval Cut From Madagascar

2.16 ct Oval Strawberry Quartz, 9 x 7.1 mm From Russia

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