Calibrated 6 x 4 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 6 x 4 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

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 -> 10

Always have good experience

Posted By Ginnie in September, 2023

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Overall Rating -> 10

The website design is a bit finicky for mobile, but Im sure its most likely just a mobile issue. Amazing selection of products, great prices.

Posted By Kuba in December, 2023

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Overall Rating -> 10

Great selection and excellent website.

Posted By JBW in October, 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

Selection and purchasing online was very easy

Posted By Aggy 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

Source: Bizrate

Overall Rating -> 7

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

Posted By Bobk in February, 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

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Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024

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Overall Rating -> 10

It was easy to search and find what i wanted

Posted By Gunner in November, 2023

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Overall Rating -> 10

Easy to use website, made it very easy to buy. Will shop here again.

Posted By Bjorn in January, 2024

Source: Bizrate

Overall Rating -> 10

The website was very easy to navigate. We appreciated the details about each gem, and the sort and search features of the website were helpful and easy to use.

Posted By AV in May, 2023

Source: Bizrate

Overall Rating -> 10

I have used Gem Select many times over the past 10 years and have always been happy with the product & services

Posted By Ordain in August, 2023

Source: Bizrate

Overall Rating -> 10

Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

Posted By Ray in February, 2024

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Gemstones A-Z

Buy Oval Shape 6x4 mm Gems

4.29 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.9 x 5.1 mm

1.51 carat Pear Shape Opal, loose Certified Opal from Australia, Natural Untreated Gem, 10.1 x 8.1 mm

44.65 ct Oval Rose Quartz, 25.1 x 21.4 mm From South Africa

4.26 ct Pink Coral, 9.4 mm Carved From Australia

35.34 ct Green Amazonite, 33.6 x 19.5 mm Oval Cut From Madagascar

5.78 ct Diamond Cut Smoky Quartz, 11.9 mm From Brazil

2.03 ct Yellow Sillimanite, 9.8 x 7.7 mm Oval Cut From Sri Lanka

3.5 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 12.2 x 6.2 mm

1.42 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gems, 5 mm

0.33 ct Blue Kyanite, 3.7 mm Round Cut From Nepal

12.49 ct Pink Azotic Topaz, 12.3 x 10.1 mm Cushion Cut From Brazil

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

48.2 ct Oval Coral, 35 x 24.8 mm From Mexico

2.49 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gems, 7 x 5.1 mm

0.48 carat Violet Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6.1 x 4.1 mm

0.47 ct Loose Orange Sapphire, 4.2 x 4.2 mm Cushion Cut From Tanzania

2.05 carat Blue Sapphire, Princess-Cut loose Sapphire from Sri Lanka, Natural Gems, 2.2 x 2.2 mm

11.27 ct Oval Star Ruby, 13.5 x 12.1 mm From Madagascar

3.03 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 4.9 x 3.1 mm

1.49 ct Loose Yellow Sapphire, 5.9 x 5 mm Oval Cut From Tanzania

16.43 ct Oval Nuummite, 19.7 x 12.5 mm From India

17.97 ct Green Amazonite, 19.9 x 10.1 mm Marquise Cut From Madagascar

35.42 ct Oval Fossil Coral, 21.8 x 15.2 mm From Indonesia

1.94 ct Loose White Sapphire, 2.4 x 2.4 mm Princess Cut From Madagascar

5.1 ct Oval Actinolite Cat's Eye, 13.1 x 10.6 mm From the United States

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

0.68 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 5 x 3.1 mm

17.75 carat Pear Jasper, loose Certified Jasper from Indonesia, Natural Untreated Gems, 21.3 x 13.6 mm

0.67 ct Loose Round Pietersite, 6 mm From Namibia

1.69 ct Loose Yellow Sapphire, 4.7 mm Round Cut From Tanzania

2.6 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 4.3 x 3 mm

25.92 ct Odd Shaped Rainbow Pyrite, 34.4 x 16.9 mm From Russia

Gemstone Information

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