• English speaking customer support only

    Toll Free - USA & Canada only:
    1-800-464-1640

    International:
    +66-39303404

  • Change Language
  • USD
Buy Customized Gemstone Lots
Shop By

Single

By Piece

Pairs

Lots

Faceted

Cab

Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (435): Round Shape 11 mm Gems Clear All
Sort By:
Click for Details
Compare
1 pc
Add to Cart
5.1ct Round Cabochon Colorless Golden Rutile Quartz Gem (ID: 443315)
5.12 ct Rutile Quartz
11 mm
$ 12.75
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
4.4ct Round Facet Violet Amethyst Gem (ID: 462775)
4.38 ct Amethyst
10.9 mm
$ 26.28
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Click for Product Video (499887)
7ct Round Facet Orange Pink Malaya Garnet Gem (ID: 499887)
7.00 ct Malaya Garnet
10.6 mm
$ 350.00
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
6.5ct Round Petal Cut Pink Rose Quartz Gem (ID: 414363)
6.47 ct Rose Quartz
11.3 mm
$ 32.35
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
6.8ct Round Cabochon White Quartz Cat's Eye Gem (ID: 370237)
6.76 ct (total 13.51ctw) Quartz Cat's Eye
11.2 mm
$ 43.91
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
4.6ct Round Facet Violet Amethyst Gem (ID: 462777)
4.62 ct Amethyst
10.9 mm
$ 27.72
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
Click for Product Video (446380)
7.1ct Round Facet Yellowish Green Tourmaline Gem (ID: 446380)
7.07 ct Tourmaline
10.9 mm
$ 1,201.90
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
4.7ct Round Facet Brown Smoky Quartz Gem (ID: 463807)
4.74 ct Smoky Quartz
11.1 mm
$ 7.11
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
5.9ct Round Cabochon Green Maw-Sit-Sit Gem (ID: 406980)
5.92 ct Maw-Sit-Sit
11.1 mm
$ 16.69
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
5.2ct Round Cabochon Colorless Golden Rutile Quartz Gem (ID: 443327)
5.22 ct Rutile Quartz
11 mm
$ 13.00
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
4.4ct Round Drilled Checkerboard (Double Sided) Yellow Golden Citrine Gem (ID: 477482)
4.44 ct Citrine
11 mm
$ 26.64
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
Click for Product Video (351454)
6.5ct Round Cabochon White Quartz Cat's Eye Gem (ID: 351454)
6.52 ct (total 13.03ctw) Quartz Cat's Eye
11 mm
$ 52.12
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
6.1ct Round Cabochon Green Maw-Sit-Sit Gem (ID: 406774)
6.05 ct Maw-Sit-Sit
10.8 mm
$ 18.15
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
4.4ct Round Facet Red Strawberry Quartz Gem (ID: 474088)
4.44 ct Strawberry Quartz
11 mm
$ 31.08
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
4.6ct Round Cabochon Cream Star Moonstone Gem (ID: 418058)
4.58 ct Star Moonstone
10.7 mm
$ 18.32
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
6.6ct Round Cabochon White Quartz Cat's Eye Gem (ID: 369427)
6.56 ct (total 13.12ctw) Quartz Cat's Eye
11.2 mm
$ 42.51
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
6.4ct Round Cabochon Greenish Yellow Cat's Eye Apatite Gem (ID: 494573)
6.41 ct Cat's Eye Apatite
10.8 mm
$ 44.87
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
4.3ct Round Facet Red Strawberry Quartz Gem (ID: 474094)
4.28 ct Strawberry Quartz
11.1 mm
$ 29.96
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
6.5ct Round Cabochon Black Cat's Eye Scapolite Gem (ID: 484104)
6.48 ct Cat's Eye Scapolite
11.1 mm
$ 32.40
Item in Stock
Click for Details
Compare
2 pcs
Add to Cart
4.9ct Round Cabochon Colorless Golden Rutile Quartz Gem (ID: 443224)
4.92 ct (total 9.84ctw) Rutile Quartz
11 mm
$ 24.50
Item in Stock
Click for Details
Compare
1 pc
Add to Cart
6.3ct Round Cabochon Cream Star Moonstone Gem (ID: 420866)
6.30 ct Star Moonstone
10.7 mm
$ 18.90
Item in Stock
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Round Shape 11 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 11 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
This was my second purchase from GemSelect and definitely won’t be my last! They have a very wide variety of gems and you can always find what you are looking for with ease and the prices are very good.
Posted By Jill in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Loved the wide selection of product
Posted By Miki in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
finally bought the last rock to complete my ring idea; needed another white one after giving the big diamond to my daughter. a diamond that size is out of my retired-school-teacher budget, so i bought a white zircon. went back to the same place that i got my loose sapphire-- great selection, good prices, good delivery!
Posted By Ptcmom in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I'm always real pleased with this website, I don't think there is much you could do to make it any better. I wish the shipping charges were lower, but it is understandable.
Posted By Spinch13 in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
This is a site that sources valuable and genuine stones forms around the world, with and honest and descriptive sections, as well as specs, and the option to have the gemstone collection one might purchased—certified! Price ranges vary, but are always affordable and always worth it, whether it’s a gift, or for a personal business.
Posted By Bradley in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I am bored and shopping , it was fun
Posted By Nanorex in November, 2018
Source: Bizrate
Popular Gemstones
All Gemstones (144)
A B C D E F G H I J K L M O P Q R S T V Z
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Save Money
No shipping Fees for Additional Items!
$6.99 Worldwide Shipping

Update Translation
 
Current Value
New Value

Creating Account...

Close window to continue

Facebook did not provide your email to login.

Please allow Facebook to provide your email or sign up an account with GemSelect.

GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
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