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.

Read All

Gemstone Information

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

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

Great Job today! No issues!

Posted By Samlovesgems777 in August, 2023

Source: Bizrate

Overall Rating -> 10

Very detailed and great pictures

Posted By Alexandrite in November, 2023

Source: Bizrate

Overall Rating -> 9

The selection and filtering is a little overwhelming, but that's only because there is so much to choose from.

Posted By Kasper in June, 2023

Source: Bizrate

Overall Rating -> 10

Easy to use as always and in all steps from opening site to paying.

Posted By Pete in February, 2024

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

Overall Rating -> 10

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

Posted By Kittypie070 in April, 2024

Source: Bizrate

Overall Rating -> 10

Easy to find products I want. I've ordered several times from gem select and never any problems. Will order again. Thank you.

Posted By Ray in January, 2024

Source: Bizrate

Overall Rating -> 10

Extremely easy to use, and I am fully satisfied with the purchase process.

Posted By Fl_Beachcomber in October, 2023

Source: Bizrate

Overall Rating -> 10

Perfect size I was looking for and great price

Posted By Izzy in September, 2023

Source: Bizrate

Overall Rating -> 10

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

Posted By Phoenix in February, 2024

Source: Bizrate

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 -> 10

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

Posted By Nikki J in September, 2023

Source: Bizrate

Overall Rating -> 10

I am excited for my first order, search tools were a great help to find the sapphire I needed for my next project! Thank you

Posted By Sue in April, 2023

Source: Bizrate

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

Gemstones A-Z

Buy Round Shape 7 mm Gems

25.99 ct Oval Serpentine, 31.8 x 19.2 mm From the United States

25.77 carat Pear Jasper, loose Certified Jasper from Mexico, Natural Untreated Gem, 31.7 x 19.2 mm

8.9 ct Trillion Pietersite, 15.3 x 14.5 mm From Namibia

50.59 carat Pear Jasper, loose Certified Jasper from Indonesia, Natural Untreated Gem, 32.9 x 26.7 mm

0.27 ct Yellow Sphalerite, 3.9 x 3.3 mm Oval Cut From Spain

98.1 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 34.2 x 27.6 mm

4.74 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15 x 10.1 mm

3.06 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.1 x 9.1 mm

0.85 ct Green Sphene, 5.5 mm Round Cut From Sri Lanka

0.89 ct Yellow Beryl, 7 x 5.1 mm Oval Cut From Madagascar

5.48 carat Yellow Citrine, loose Citrine from Brazil, Natural Untreated Gem, 13.3 x 10.2 mm

2.23 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.1 mm

0.86 ct Loose Pink Spinel, 5.6 x 4.9 mm Cushion Cut From Tanzania

4.5 ct Pink Morganite, 13.8 x 14.4 mm Carved From Afghanistan

0.21 ct Octagon Cut Iolite, 4.9 x 2.9 mm From Madagascar

1.12 ct Blue Kyanite, 7.1 x 5.1 mm Oval Cut From Nepal

0.51 ct Loose Yellow Sapphire, 3.2 x 3.2 mm Princess Cut From Tanzania

4.11 ct Pink Kunzite, 8.2 x 7.8 mm Octagon Cut From Afghanistan

1.38 ct Yellow Sillimanite, 8.1 x 6.2 mm Oval Cut From Sri Lanka

5.83 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.1 x 9.1 mm

2.23 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.1 mm

0.62 carat Green Tourmaline, Cushion loose Tourmaline from Mozambique, Natural Untreated Gem, 5.2 x 4.8 mm

2.26 ct Orange Coral, 11.8 x 5.6 mm Oval Cut From Australia

30.17 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 21.3 x 16.3 mm

6.84 carat Yellow Citrine, loose Citrine from Brazil, Natural Untreated Gem, 14.4 x 10.9 mm

1.54 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 7 x 5.6 mm

23.13 ct Cushion Moss Agate, 21.9 x 16 mm From India

6.6 carat Round Opal, loose Certified Opal from Australia, Natural Untreated Gem, 12.5 mm

3.1 carat Square Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 3.7 x 3.6 mm

18.42 ct Druzy Citrine, 19 x 10.9 mm From Uruguay

16.56 carat Pink Kunzite, Pear Shape loose Kunzite from Afghanistan, Natural Untreated Gem, 20 x 12.8 mm

2.84 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 12.9 x 8.9 mm

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT