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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I have used this site for sseveral years now. All has been great. I started collection gems from GemSelect for years and wanted to collect at least one of most stones. I loved Safers because the mols is a 9 + and they come in every color. This is the best place to buy gems for the assortment and price. Great place to learn about gems too. Sometimes the shipping is a little on the long side. But I would give them a 9.9 out of 10 !!

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Overall Rating -> 9

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Perfect size I was looking for and great price

Posted By Izzy in September, 2023

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Overall Rating -> 10

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

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Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

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Gemstones A-Z

Buy Oval Shape 6x4 mm Gems

17.09 ct Oval Serpentine, 27.6 x 17 mm From the United States

7.6 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.2 mm

0.84 ct Loose Pink Sapphire, 7.7 x 6.5 mm Odd Shaped From Tanzania

1.48 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 9.4 x 7.6 mm

3.47 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 10.3 x 7.5 mm

0.63 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 7.1 x 5 mm

5.59 carat Blue Zircon, Oval loose Zircon from Cambodia, Natural Gem, 9.6 x 7.8 mm

1.07 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gem, 7 x 5.1 mm

0.74 ct Loose Violet Sapphire, 6.1 x 5.3 mm Oval Cut From Madagascar

5.14 ct Oval Cut Strawberry Quartz, 13.9 x 10 mm From Russia

0.35 carat Pear Shape Iolite, loose Certified Iolite from Madagascar, Natural Untreated Gem, 6 x 4.1 mm

10.03 ct Loose Round Agate, 13.9 mm From Indonesia

19.67 ct Octagon / Emerald Cut Hematite, 19.9 x 15.2 mm From Brazil

31.11 ct Fancy Amethyst Geode Slice, 29.6 x 23.1 mm From Brazil

1.02 ct Blue Kyanite, 7.1 x 5 mm Oval Cut From Nepal

1.15 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5.4 mm

1.95 carat Pear Tiger's Eye, loose Certified Tiger's Eye from Thailand, Natural Untreated Gem, 10.1 x 7.1 mm

0.52 ct Octagon Cut Kornerupine, 5.3 x 4.1 mm From Sri Lanka

1.48 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.5 x 3.7 mm

1.44 ct Oval Cut Golden Beryl, 8.7 x 6.8 mm From Madagascar

1.94 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gems, 7.1 x 6.9 mm

0.54 ct Loose Yellow Sapphire, 3.4 x 3.3 mm Princess Cut From Tanzania

0.54 carat Yellow Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6 x 4.1 mm

57.97 ct Yellow Quartz, 42.8 x 17.6 mm Marquise Cut From Brazil

5.11 ct Trillion Concave Cut Smoky Quartz, 10.1 x 10 mm From Brazil

0.17 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm

23.38 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 21.1 x 12.4 mm

1.16 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 19.1 x 2.8 mm

9.24 ct Oval Coral, 16.7 x 12.5 mm From Indonesia

7.3 ct Round Tiger's Eye, 12.3 mm From Thailand

0.77 ct Loose Pink Sapphire, 7.9 x 6.2 mm Odd Shaped From Tanzania

9.19 ct Oval Agate, 14 x 12 mm From Indonesia

Gemstone Information

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