Calibrated 14 x 12 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 14 x 12 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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Gemstone Information

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Overall Rating -> 10

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023

Source: Bizrate

Overall Rating -> 10

Great selection and excellent website.

Posted By JBW in October, 2023

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Overall Rating -> 10

Selection and purchasing online was very easy

Posted By Aggy in January, 2024

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Overall Rating -> 10

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

Posted By Phoenix in March, 2024

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Overall Rating -> 10

I have used GemSelect for several years and plan to shop more in the further. This is a good source of information on gemstones. I love looking at and learning about them. Lot more than I ever knew existed.

Posted By Bikerwalrus in October, 2023

Source: Bizrate

Overall Rating -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

Posted By MI photo in May, 2023

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Overall Rating -> 10

Very detailed and great pictures

Posted By Alexandrite in November, 2023

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Overall Rating -> 10

Super easy to do business for great products.

Posted By BoBBy in January, 2024

Source: Bizrate

Overall Rating -> 10

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.

Posted By Dee in September, 2023

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Overall Rating -> 10

The website is easy to navigate and the images are incredible.

Posted By Lindsy in October, 2023

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Overall Rating -> 10

Great website and information

Posted By Moonshot in December, 2023

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Overall Rating -> 9

Overall good, shipping prices just seem a little on the high side.

Posted By Steve in August, 2023

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Overall Rating -> 10

I find the website user friendly.

Posted By Becky in August, 2023

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Overall Rating -> 10

i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

Posted By Jf in January, 2024

Source: Bizrate

Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

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Gemstones A-Z

Buy Oval Shape 14x12 mm Gems

3.82 ct Fancy Fire Agate, 14.3 x 8.3 mm From Mexico

4.75 carat Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.3 x 11.2 mm

1.28 ct Round Cat's Eye Moonstone, 7.1 mm From India

3.58 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 8 x 7.9 mm

2.2 carat Brown Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.7 x 7 mm

1.04 ct Loose Violet Sapphire, 6.7 x 5.1 mm Cushion Cut From Tanzania

1.58 ct Round Onyx, 7.2 mm From Sri Lanka

1.68 ct Loose Orange Moonstone, 8.1 x 8 mm Trillion Cut From India

3.25 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 14.8 x 7 mm

20.06 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 31.4 x 13.6 mm

2.2 ct Blue Apatite, 5.2 x 4.1 mm Oval Cut From Madagascar

0.95 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.6 mm

8.87 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 21 x 8 mm

0.6 ct Loose Orange Sapphire, 6.2 x 4.2 mm Oval Cut From Tanzania

0.56 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 5.2 x 4.3 mm

0.79 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7 x 5.1 mm

2.06 ct Oval Prehnite, 9.9 x 7.4 mm From South Africa

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

1.24 ct Pink Morganite, 7.3 mm Round Cut From Afghanistan

0.09 ct Green Diamond, 2.8 mm Diamond Cut From India

0.53 carat Green Sapphire, Cushion loose Sapphire from Tanzania, Natural Gem, 4.3 x 4.2 mm

4.33 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.6 x 9.9 mm

9.84 ct Round Rutile Quartz, 11 mm From India

0.35 ct Loose Orange Sapphire, 4.2 mm Round Cut From Tanzania

4.01 carat Blue Sapphire, Pear Shape loose Sapphire from Sri Lanka, Natural Gem, 10 x 8.7 mm

0.73 ct Oval Chrysoberyl Cat's Eye, 5.8 x 4 mm From Sri Lanka

24.14 ct Oval Cut Rose Quartz, 22.1 x 18.1 mm From South Africa

22.19 ct Baguette Tiger's Eye, 18.1 x 13.1 mm From Thailand

2.38 carat Square Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 4.9 x 4.8 mm

5.16 ct Trillion Cut Idocrase, 11.3 x 11.2 mm From the United States

1.84 ct Loose Oval Concave Cut Mystic Quartz, 9 x 6.9 mm From Brazil

0.87 carat Green Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 7 x 5 mm

Gemstone Information

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