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

Website was incredibly easy and fast to use. Navigation and product outlay was simple and enjoyable to browse. Thank you and have a blessed day!

Posted By Devi in October, 2023

Source: Bizrate

Overall Rating -> 9

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

Source: Bizrate

Overall Rating -> 10

Love Gem select. great gems for the price. Can't beet them

Posted By Apps in September, 2023

Source: Bizrate

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

Best place to buy gem stones, dont bother shopping else where. Prices are great, no issues with shipping and customer service is the best.

Posted By J in December, 2023

Source: Bizrate

Overall Rating -> 10

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

Posted By Kate in December, 2023

Source: Bizrate

Overall Rating -> 10

Selection ability was straightforward and easy.

Posted By Dave in May, 2023

Source: Bizrate

Overall Rating -> 10

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

Posted By Lindsy in October, 2023

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

Source: Bizrate

Overall Rating -> 10

Hello: You do have good website. Vast majority of folks would buy the Gems for its spiritual, physical / energy level, emotional level positive aspects. You have only very brief mention of this aspect of each Gem ..may be you can add little bit more about ways to leverage the beneificial effect of each gems i.e. some practical tips.ThanksRupen Patel

Posted By EarthDeep in February, 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 searched for the item by description and millimeter and had my choice come up and then made the best selection.

Posted By Tim in April, 2024

Source: Bizrate

Overall Rating -> 10

Everything was fine.

Posted By Matt in March, 2024

Source: Bizrate

Overall Rating -> 10

I was pleased with the selection of gems, the ease of navigating, and the smooth checkout

Posted By JamesMichael781 in September, 2023

Source: Bizrate

Overall Rating -> 10

I have received emails for about a year and today is the condition that had me decide on the purchase

Posted By Tim in April, 2024

Source: Bizrate

Gemstones A-Z

Buy Oval Shape 12x10 mm Gems

6.25 ct Octagon Concave Cut Smoky Quartz, 12.1 x 12 mm From Brazil

0.77 carat Oval Peridot, loose Certified Peridot from China, Natural Untreated Gem, 7.1 x 5 mm

2.59 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 9.1 x 7.5 mm

3.53 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 12.2 x 10.1 mm

2.56 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gem, 12.1 x 6.1 mm

0.85 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.5 x 4.5 mm

0.73 ct Oval Cut Peridot, 6.8 x 5 mm From China

7.22 ct Marquise Concave Cut Smoky Quartz, 17.1 x 12 mm From Brazil

4.61 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.1 mm

1.3 ct Loose Yellow Sapphire, 5 mm Round Cut From Tanzania

2.83 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.2 x 5.2 mm

0.02 ct Loose Blue Diamond, 1.7 mm Diamond Cut From India

1.33 ct Loose Oval Malachite, 8.5 x 5.6 mm From Congo

3.71 carat Yellow Citrine, Round Concave loose Citrine from Brazil, Natural Untreated Gem, 10.5 mm

57.97 ct Round Checkerboard Labradorite, 31.7 mm From Madagascar

1.22 ct Yellow Beryl, 8.3 x 6.3 mm Oval Cut From Madagascar

1.22 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 8.7 x 6.7 mm

12.51 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 16.6 x 15.2 mm

1.75 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 5.1 mm

1.05 ct Violet Spinel, 7.6 x 4.9 mm Baguette Cut From Tanzania

5.09 ct Orange Sunstone, 12 x 9.9 mm Oval Cut From India

3.38 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gem, 15 x 7.3 mm

1.41 ct Oval Black Opal, 6.1 x 4.2 mm From Ethiopia

0.59 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5.2 mm

0.17 ct White Diamond, 2.7 mm Diamond Cut From Brazil

2.22 carat Sky Blue Topaz, loose Topaz from Brazil, Natural Gems, 7.2 x 5.3 mm

5.55 ct Fancy Fire Agate, 13.4 x 9.9 mm From Mexico

0.68 ct Loose White Sapphire, 4.3 mm Diamond Cut From Madagascar

2.25 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.1 mm

2.54 ct Round Onyx, 7 mm From Sri Lanka

0.82 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 8.2 x 6.1 mm

4.97 ct Blue Green Grandidierite, 11.7 x 10.4 mm Oval Cut From Madagascar

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