Calibrated 7 mm Round Shape Loose Natural Gemstones from 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 Round shapes, facet cut and cabochon gems available now in 7 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 slightly higher even. 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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Gemstone Information

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Overall Rating -> 10

I was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

Posted By Ana in September, 2023

Source: Bizrate

Overall Rating -> 10

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

Posted By HairyOtter in July, 2023

Source: Bizrate

Overall Rating -> 10

My last experience was good, in fact every experience I have had with them has met my expectations or surpassed them. These are really good people to work with.

Posted By Spinach in May, 2023

Source: Bizrate

Overall Rating -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024

Source: Bizrate

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.

Posted By Ktreva52 in February, 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 -> 10

I particularly like information about product provided with purchase.

Posted By Dick in May, 2023

Source: Bizrate

Overall Rating -> 10

Easy to navigate

Posted By G Funk in December, 2023

Source: Bizrate

Overall Rating -> 10

Selection and purchasing online was very easy

Posted By Aggy in January, 2024

Source: Bizrate

Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

Posted By Mr. Bezel in July, 2023

Source: Bizrate

Overall Rating -> 10

this was very easy im exited to get my order

Posted By Mr. in April, 2024

Source: Bizrate

Overall Rating -> 9

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 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 -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

Posted By MI photo in May, 2023

Source: Bizrate

Overall Rating -> 10

Love the variety of stones, sizes and the prices

Posted By Dorita in March, 2024

Source: Bizrate

Gemstones A-Z

Buy Round Shape 7 mm Gems

72.72 carat Pear Rhodochrosite, loose Certified Rhodochrosite from South Africa, Natural Untreated Gem, 43 x 20.3 mm

4.24 carat Yellow Citrine, Cushion loose Citrine from Brazil, Natural Untreated Gem, 12.9 x 7.3 mm

1.11 ct Cushion Cut Color-Change Diaspore, 7.4 x 4.6 mm From Turkey

11.98 ct Loose Oval Agate, 14.4 x 13.5 mm From Indonesia

31.5 ct Oval Jasper, 30.1 x 20.6 mm From Indonesia

2.49 ct Loose Pink Kunzite, 9.6 x 5.2 mm Octagon Cut From Afghanistan

2.1 ct Purple Kunzite, 7.2 x 6.6 mm Oval Cut From Afghanistan

2.42 ct Loose Oval Cut Black Opal, 14.2 x 9.2 mm From Ethiopia

5.55 carat Trillion-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 10 x 9.8 mm

4.58 ct Oval Prehnite, 8.6 x 8 mm From South Africa

4.07 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5 mm

1.2 carat Orange Sunstone, Oval loose Sunstone from India, Natural Untreated Gem, 8.1 x 6.1 mm

0.79 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7 x 5.1 mm

4.43 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 10 x 8.1 mm

2.93 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 9.9 mm

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

2.17 carat Swiss Blue Topaz, Emerald-Cut loose Topaz from Brazil, Natural Gem, 8.1 x 6.2 mm

5.44 carat Pink Topaz, Cushion loose Topaz from Brazil, Natural Gems, 8.1 x 8.1 mm

1.78 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7.7 x 6 mm

2.1 ct Green Sphene, 6.3 x 5.6 mm Oval Cut From Sri Lanka

2.92 ct Blue Kyanite, 8.2 x 6.1 mm Oval Cut From Nepal

0.53 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6 x 4.2 mm

5.44 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.1 x 10.2 mm

1.14 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 7.5 x 4.7 mm

0.46 carat Orange Sapphire, Heart loose from Tanzania, Natural Gem, 4.6 x 4.6 mm

7.49 ct Green Agate, 10 x 8.9 mm Oval Cut From India

1.18 carat Red Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6.4 mm

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

1.62 carat Yellow Citrine, Emerald-Cut loose Citrine from Brazil, Natural Untreated Gem, 8.2 x 6.1 mm

4.27 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.1 x 4 mm

3.67 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 7.1 mm

19.5 carat Carved Turtle Mother of Pearl, loose Certified Mother of Pearl from China, Natural Gem, 18.7 x 17.1 mm

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