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Buy Round Shape 13 mm Gems

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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (372): Round Shape 13 mm Gems Clear All
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Silver Pearl Gem - 13.4ct Spherical (ID: 338283)

Sphere / Ball Gray Pearl

13.4ct
12.5 mm
$ 200.70
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1 pc
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Cream Star Moonstone Gem - 11.6ct Round Cabochon (ID: 403189)

Round Cream Star Moonstone

11.6ct
13.3 mm
$ 40.88
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Colorless with Golden Rutile Quartz Gem - 9.7ct Round Cabochon (ID: 403680)

Round Colorless Rutile Quartz

9.7ct
13.2 mm
$ 30.75
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Cream Cat's Eye Moonstone Gem - 9.8ct Round Cabochon (ID: 481763)

Round Cream Cat's Eye Moonstone

9.8ct
13.3 mm
$ 39.00
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Pink Rose Quartz Gem - 9.3ct Round Petal Cut (ID: 414437)

Round Pink Rose Quartz

9.3ct
13.5 mm
$ 46.60
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White Quartz Cat's Eye Gem - 9.9ct Round Cabochon (ID: 351446)

Round White Quartz Cat's Eye

9.9ct
12.8 mm
$ 39.56
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Green Maw-Sit-Sit Gem - 11.6ct Round Cabochon (ID: 407802)

Round Green Maw-Sit-Sit

11.6ct
13.2 mm
$ 23.20
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Silver Pearl Gem - 15ct Spherical (ID: 338168)

Sphere / Ball Gray Pearl

15ct
12.6 mm
$ 219.50
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Cream Cat's Eye Moonstone Gem - 10.5ct Round Cabochon (ID: 481512)

Round Cream Cat's Eye Moonstone

10.5ct
13.2 mm
$ 51.30
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Colorless Golden Rutile Quartz Gem - 6.6ct Round Cabochon (ID: 435856)

Round Yellow Rutile Quartz

6.6ct
13 mm
$ 16.34
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2 pcs
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Colorless with Brown Rutile Quartz Gem - 17ct Drilled Sphere (ID: 423451)

Sphere / Ball Colorless Rutile Quartz

16.99 ct (total 33.97ctw)
13.2 mm
$ 33.97
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Multicolor Jasper Gem - 16.1ct Drilled Sphere (ID: 469882)

Sphere / Ball Multicolor Jasper

16.09 ct (total 48.28ctw)
12.6 mm
$ 25.11
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Colorless with Brown Rutile Quartz Gem - 16.7ct Drilled Sphere (ID: 434804)

Sphere / Ball Colorless Rutile Quartz

16.69 ct (total 33.38ctw)
13.5 mm
$ 33.38
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Red Orange Sphalerite Gem - 11.3ct Round Facet (ID: 219374)

Round Orange Sphalerite

11.3ct
12.8 mm
$ 621.50
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White Quartz Cat's Eye Gem - 10.4ct Round Cabochon (ID: 351439)

Round White Quartz Cat's Eye

10.4ct
12.8 mm
$ 41.60
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Brown Smoky Quartz Gem - 10.8ct Round Petal Cut (ID: 417909)

Round Brown Smoky Quartz

10.8ct
13.5 mm
$ 19.35
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Cream Cat's Eye Moonstone Gem - 10.1ct Round Cabochon (ID: 481513)

Round Cream Cat's Eye Moonstone

10.1ct
13.2 mm
$ 49.29
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Silver Pearl Gem - 13.1ct Spherical (ID: 338288)

Sphere / Ball Gray Pearl

13.1ct
13.1 mm
$ 195.75
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Brown Smoky Quartz Gem - 7.3ct Round Facet (ID: 465975)

Round Brown Smoky Quartz

7.3ct
12.8 mm
$ 10.91
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Golden Pearl Gem - 13ct Spherical (ID: 335848)

Sphere / Ball Yellow Pearl

13ct
12.6 mm
$ 195.15
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2 pcs
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Click for Product Video (392518)
Violet Amethyst Gem - 9.1ct Round Cabochon (ID: 392518)

Round Violet Amethyst

9.12 ct (total 18.24ctw)
13.2 mm
$ 91.20
Item in Stock
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Round Shape 13 mm Gems
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 13 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.

Certified Customer Reviews
Overall Rating -> 10 star ratings
man their gems are pretty good, and the prices aren't to bad either, I like checking out hte gems on there website, beceause the pictures of the gems are taken pretty well, and you can see the table, and the facets.
Posted By Spinach in March, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
I love gemselect and I have bought a fair amount from them. The only complaint I have is not being able to save gems. I have a lot of projects so i am in the market for a lot of different gems and it's so disappointing to have to delete them all just to purchase one or two that I have saved in my cart.
Posted By S.Hicks in March, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
I always check this site because they have unique options.
Posted By Lisa in February, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
Great website to navigate. Awesome Gem selection! Nice photos and discriptions for all of the gems for sale. You can find gems in all price ranges. Checkout was a breeze.
Posted By Timmy in February, 2019
Source: Bizrate
Overall Rating -> 10 star ratings
They had an extensive gemstone selection in all different cuts, sizes, and colors. They also had very good and workable prices. All of these aspects pulled me in as a customer.
Posted By Josh in February, 2019
Source: Bizrate
Overall Rating -> 9 star ratings
It all depend on the product I will receive and have it verified by my in law jewellers.
Posted By Vodka in February, 2019
Source: Bizrate
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart