Calibrated 20 x 15 mm Oval Shape Natural Loose Gemstones: GemSelect

Some people by gems by color or pricze, 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 oval shapes, facet cut and cabochon gems available now in 20 x 15 mm 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 round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most 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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Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

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was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

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The gems were as described, which is kind of rare these days. I am happy with the purchase, and delevery on time.

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Gemstones A-Z

Buy Oval Shape 20x15 mm Gems

0.52 ct Black Diamond, 4.6 mm Diamond Cut From India

2.16 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gems, 7.1 x 5.1 mm

3.49 carat Round Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 9.9 mm

5.06 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gems, 8 x 7.9 mm

3.41 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.1 x 4.1 mm

21.3 ct Green Jade, 27.1 x 14.1 mm Carved From Myanmar

0.92 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5.1 mm

0.62 ct Square Cut Color-Change Diaspore, 5.3 x 5.1 mm From Turkey

0.65 ct Pink Spinel, 5.3 x 4.6 mm Cushion Cut From Tanzania

3.9 ct Orange Moonstone, 7.2 x 7.1 mm Square Cut From India

1.18 carat Pink Morganite, Pear Shape loose Morganite from Brazil, Natural Untreated Gem, 10.8 x 6 mm

13.35 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 18.4 x 11 mm

1.01 ct Loose Yellow Sapphire, 6.2 x 5.4 mm Oval Cut From Tanzania

47.73 ct Baguette Jasper, 31.1 x 23.7 mm From Indonesia

0.52 carat Yellow Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 5 x 4.2 mm

3.5 ct Black Star Sapphire, 9.3 x 7.1 mm Oval Cut From Thailand

3.02 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 8.9 x 8.8 mm

0.81 ct Orange Sphalerite, 5.1 mm Round Cut From Spain

7.12 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 14.9 x 7.1 mm

3.13 ct Blue Star Sapphire, 8.9 x 7 mm Oval Cut From Thailand

2.16 ct Loose Oval Malachite, 10.1 x 6.9 mm From Congo

1.58 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 5.9 x 5.7 mm

0.5 carat Purple Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6.8 x 4.5 mm

4.03 carat Blue Green Grandidierite, Pear Shape loose Grandidierite from Madagascar, Natural Untreated Gem, 11.4 x 9.5 mm

2 carat Oval Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.9 x 5 mm

9.45 carat Round Cabochon Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 10.8 mm

6.17 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 9.1 x 8.8 mm

48.99 ct Yellow Quartz, 28.8 x 21.4 mm Oval Cut From Brazil

1.39 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 7.1 x 5 mm

5.54 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 17.1 x 8.4 mm

0.82 ct Square Cut Color-Change Diaspore, 5.2 x 4.9 mm From Turkey

6.24 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.1 x 10.1 mm

Gemstone Information

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