Calibrated 12 x 10 mm Oval Shape Natural Loose Gemstones: GemSelect

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 oval shapes, facet cut and cabochon gems available now in 12 x 10 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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Overall Rating -> 10

The website is very easy to use. The search function, filter and sort functions are very helpful.

Posted By Sboro in August, 2023

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Overall Rating -> 9

Everything was good but since I am still new I was surprised at how small the stones where.

Posted By Js in May, 2023

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Overall Rating -> 10

Found the stone I wanted which was delivered quickly and met expectations.

Posted By GemGrammy in January, 2024

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Overall Rating -> 10

Easy to use as always and in all steps from opening site to paying.

Posted By Pete in February, 2024

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Overall Rating -> 10

first time here sooooooooooo we will seeeee!!!!! so far so good!!!!!!

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Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

Posted By Mr. Bezel in July, 2023

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Overall Rating -> 9

over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

Posted By Iggywiggly in January, 2024

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Overall Rating -> 10

Selection ability was straightforward and easy.

Posted By Dave in May, 2023

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Overall Rating -> 10

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

Posted By Will J. Lover in September, 2023

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Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

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Overall Rating -> 9

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023

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Overall Rating -> 10

I have actually done business with them before and was quite satisfied with them then.My Mother collected turtle items and when I saw the Mother of Pearl turtle...I just thought of her and decided to buy it. It's even tinier than I thought, but so adorable!The gemstones I bought are for jewelry for my daughter's birthday.

Posted By Ktreva52 in February, 2024

Source: Bizrate

Overall Rating -> 10

The website is user friendly, has excellent selection. I've always found what I was looking for with Gem Select. When others don't have it they do. And most important, they have a way for you to pay without using PayPal. I cannot use PayPal they closed my account because of no cell phone.

Posted By NJD in September, 2023

Source: Bizrate

Overall Rating -> 10

GemSelect has the Best gems. Clear photos and detailed description helps me make the best choice. I have Never been disappointed by thier quality items.

Posted By Rock Hound in July, 2023

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Overall Rating -> 10

Super easy to do business for great products.

Posted By BoBBy in January, 2024

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Gemstones A-Z

Buy Oval Shape 12x10 mm Gems

0.81 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 12.6 x 3.1 mm

0.14 ct Black Diamond, 2.2 x 2.2 mm Princess Cut From India

4.02 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 13.9 x 9.9 mm

1.63 ct Green Sphene, 7.6 x 6.1 mm Oval Cut From Sri Lanka

7.9 ct Oval Cut Strawberry Quartz, 16.1 x 12 mm From Brazil

1.62 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.1 x 6.1 mm

3.66 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9 mm

0.56 ct Orange Sphalerite, 5.2 x 4.3 mm Oval Cut From Spain

0.89 ct Octagon Cut Peridot, 6.9 x 5 mm From China

7.55 ct Round Pietersite, 11.4 mm From Namibia

33.71 ct Oval Jasper, 30.3 x 28.9 mm From Indonesia

17.6 ct Odd Shaped Rainbow Pyrite, 17.7 x 13.4 mm From Russia

1.83 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 15.5 x 4 mm

2.16 ct Round Onyx, 5.6 mm From Sri Lanka

2.86 carat Heart Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 10.1 mm

2.15 carat Violet Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.2 x 3.2 mm

18.46 ct Marquise Rainbow Moonstone, 26.9 x 11.2 mm From the United States

3.42 carat Green Sapphire, Oval loose Sapphire from Tanzania, Natural Gems, 5.8 x 4.7 mm

3.09 ct Yellow Cat's Eye Apatite, 10.1 x 7.5 mm Oval Cut From Kenya

13.11 ct Fancy Dendritic Agate, 20.4 x 15.1 mm From India

1.71 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 11.1 x 8.9 mm

4.02 ct Orange Sunstone, 11.9 x 9.9 mm Oval Cut From India

0.16 ct Oval Chrysoberyl Cat's Eye, 3.3 x 3 mm From Sri Lanka

35.99 ct Fancy Jasper, 31.7 x 23.7 mm From Indonesia

0.67 carat Blue Tanzanite, Marquise Cut loose Tanzanite from Tanzania, Natural Gems, 7.2 x 3.4 mm

2.42 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 5.8 x 3.8 mm

3.75 ct Oval Cut Andalusite, 5.9 x 4 mm From Brazil

0.94 carat Orange Hessonite Garnet, Round loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 5.7 mm

3 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 9.9 mm

0.95 ct Purple Spinel, 5.9 x 5.6 mm Cushion Cut From Tanzania

2.28 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gems, 6.2 x 6.1 mm

1.17 carat Purple Spinel, Pear Shape loose Spinel from Tanzania, Natural Untreated Gem, 7.5 x 5.9 mm

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