Buy 6.5 mm Round Calibrated Gemstones from GemSelect

Some people buy 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 Round shapes, facet cut and cabochon gems available now in 6.5 mm diameter 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 around 0.3 mm or even slightly higher. This small variance can usually be accommodated for 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

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Overall Rating -> 10

I have actually done business with them before and was quite satisfied with them then.My Mother collected turtle items and when I saw the Mother of Pearl turtle...I just thought of her and decided to buy it. It's even tinier than I thought, but so adorable!The gemstones I bought are for jewelry for my daughter's birthday.

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I enjoyed browsing though different varieties of rubies. I felt that the experience was simple and easy to navigate!

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

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Overall Rating -> 10

No issues at all. It was great.

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Gemstones A-Z

Buy Round Shape 6.5 mm Gems

1.05 carat Orange Sunstone, Oval loose Sunstone from India, Natural Untreated Gem, 8 x 6 mm

8.38 ct Oval Cut Strawberry Quartz, 12.1 x 9.7 mm From Russia

7.36 ct Red Andesine Labradorite, 11.2 x 9.1 mm Oval Cut From Congo

10.82 ct Ball Agate, 11.1 mm From Indonesia

0.35 ct Blue Kyanite, 3.8 mm Round Cut From Nepal

2.72 ct Red Agate, 7.8 x 6.1 mm Oval Cut From India

1.77 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gems, 6 x 6 mm

0.66 ct Loose Pink Sapphire, 6.5 x 4.5 mm Oval Cut From Madagascar

10.94 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gems, 20.7 x 9.9 mm

13.39 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.1 x 15 mm

0.44 ct Loose Orange Sapphire, 4.7 x 4.6 mm Heart Cut From Tanzania

2.83 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 5 x 3.1 mm

1.26 ct Oval Cut Fire Opal, 8 x 6.1 mm From Mexico

15.94 ct Black Spinel, 12 mm Round Rose Cut From Thailand

4.46 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gems, 8.2 x 6.2 mm

0.87 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 6 x 4.1 mm

0.06 ct Green Diamond, 2.5 mm Diamond Cut From India

8.3 carat White Topaz, Square loose Topaz from Brazil, Natural Untreated Gems, 5.1 x 5 mm

2.02 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 7.1 x 7 mm

2.48 carat Pear Shape Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gems, 3.9 x 2.9 mm

3.68 carat White Topaz, Round loose Topaz from Brazil, Natural Untreated Gem, 9.6 mm

0.85 carat Orange Hessonite Garnet, Pear Shape loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.8 x 4.9 mm

0.86 carat Orange Hessonite Garnet, Square loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 5 x 4.9 mm

7.25 ct Flower Cut Rose Quartz, 12.9 x 12.8 mm From South Africa

7.02 ct Yellow Quartz, 10.7 x 10.6 mm Carved From Brazil

1.31 ct Round Cut Strawberry Quartz, 7 mm From Russia

3.49 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 10.1 mm

32.31 ct Baguette Hematite, 20.7 x 13.1 mm From Brazil

2.67 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 3.9 x 3.9 mm

5.68 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.1 x 10.2 mm

1.15 ct Pink Morganite, 6.8 mm Round Cut From Afghanistan

21.8 carat Pear Quartz With Marcasite, loose Certified Quartz With Marcasite from Brazil, Natural Untreated Gem, 25.1 x 15.8 mm

Gemstone Information

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