Calibrated 16 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 16 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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Overall Rating -> 10

Fine. All emails answered. Excellent service. Nice discount added for orders. Briefly, a very good experience.

Posted By C.J. in February, 2024

Source: Bizrate

Overall Rating -> 10

Easy to find products I want. I've ordered several times from gem select and never any problems. Will order again. Thank you.

Posted By Ray in January, 2024

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Overall Rating -> 10

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

Posted By Phoenix in February, 2024

Source: Bizrate

Overall Rating -> 10

Great Job today! No issues!

Posted By Samlovesgems777 in August, 2023

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Overall Rating -> 10

Very Good

Posted By Julian in July, 2023

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Overall Rating -> 10

I bought a small ring green so I may practice my jewelry making.

Posted By HairyOtter in July, 2023

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Overall Rating -> 10

Love gemselect

Posted By Joshua Howard in March, 2024

Source: Bizrate

Overall Rating -> 10

I purchase all of my stones from GemSelect! They're the best I've found for both selection and value.

Posted By Terry in June, 2023

Source: Bizrate

Overall Rating -> 9

Gemselect is a good website with a great selection of loose gems for sale. The prices are fairly decent, with the only negative being the cut quality of the gems. This is my go to retailer for gemstones and will continue to be, given that the packages arrive in a timely manner.

Posted By Lunchies in April, 2024

Source: Bizrate

Overall Rating -> 10

I love your selection of gems. My only complaing is I wish I could put in a page number to return to that page.When there are over 60 pages of gems it is hard to return to a page with a gem I am considering.

Posted By Cahall in March, 2024

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

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.

Posted By Kittypie070 in April, 2024

Source: Bizrate

Overall Rating -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

Posted By Mark in March, 2024

Source: Bizrate

Overall Rating -> 10

I find the website user friendly.

Posted By Becky in August, 2023

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Gemstones A-Z

Buy Oval Shape 16x12 mm Gems

0.72 carat Orange Hessonite Garnet, Pear Shape loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.9 x 4.6 mm

0.62 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 8.4 x 3.4 mm

3.1 ct Loose Round Pietersite, 9 mm From Namibia

8.55 ct Fancy Fire Agate, 24.6 x 8.4 mm From Mexico

1.23 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.4 x 5.8 mm

2.94 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 8.8 x 8.7 mm

5.17 ct White Quartz, 11.3 mm Diamond Cut From Brazil

8.43 ct Pink Moonstone, 9 x 8.5 mm Carved From India

22.44 ct Yellow Star Sapphire, 16.7 x 13.8 mm Oval Cut From Madagascar

3.66 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 10.9 x 8.9 mm

3.42 ct Orange Sunstone, 10 mm Round Cut From India

1.53 ct Loose Yellow Sapphire, 7.7 x 6 mm Oval Cut From Tanzania

1.73 ct Yellow Beryl, 9 x 8.8 mm Trillion Cut From Madagascar

0.93 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6 x 4.2 mm

4.08 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7.1 x 5.2 mm

1.49 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 12.1 x 6 mm

0.84 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from the United States, Natural Untreated Gem, 6.9 x 4.9 mm

1.28 ct Oval Sillimanite Cat's Eye, 7.5 x 5.2 mm From Madagascar

0.38 ct Loose White Sapphire, 4.4 mm Diamond Cut From Madagascar

15.41 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 27.1 x 16 mm

39.93 carat Oval Tiger's Eye, loose Certified Tiger's Eye from Thailand, Natural Untreated Gem, 27.9 x 24.9 mm

0.55 carat Marquise Cut Opal, loose Certified Opal from Australia, Natural Untreated Gem, 12.6 x 4.7 mm

0.52 carat London Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 7 x 3.6 mm

4.72 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 8.9 x 7.1 mm

1.9 carat Yellow Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.8 mm

1.37 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 7.8 x 5.9 mm

10.25 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 14.2 x 12.1 mm

0.78 ct Loose Pink Sapphire, 9.4 x 5 mm Odd Shaped From Madagascar

0.37 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 4.7 x 3.7 mm

32.08 ct Loose Violet Lepidolite, 33 x 11 mm Pencil Cut From the United States

1.98 ct Orange Morganite, 7.9 x 6 mm Oval Cut From Afghanistan

1.37 ct Baguette Cut Color-Change Diaspore, 9.7 x 4.7 mm From Turkey

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