X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Buy Round Shape 8 mm Gems

Round Shape 8 mm Gems Weight
Round Shape 8 mm Gems Size
Round Shape 8 mm Gems Clarity
Round Shape 8 mm Gems Price
Round Shape 8 mm Gems Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black Round Shape 8 mm Gems
Blue Round Shape 8 mm Gems
Brown Round Shape 8 mm Gems
Golden Round Shape 8 mm Gems
Gray
Green Round Shape 8 mm Gems
Multicolor Round Shape 8 mm Gems
Orange Round Shape 8 mm Gems
Pink Round Shape 8 mm Gems
Purple
Red Round Shape 8 mm Gems
Turquoise Round Shape 8 mm Gems
Violet Round Shape 8 mm Gems
White Round Shape 8 mm Gems
Yellow Round Shape 8 mm Gems
Single
Pairs
Lots
Faceted
Cabochons
Clear All
  • Actual Product Photos
  • Reliable Quality
  • Full Transparency
  • Large Selection
  • Affordable Prices
  • Fast, Secure Global Shipping
ID: 524531
Weight: 4.16ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 39.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 452285
Weight: 4.39ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 37.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 494575
Weight: 3.41ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 28.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 569769
Weight: 5.63ct (total)
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 41.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 474931
Weight: 1.77ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 16.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 661992
Weight: 2.00ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 437208
Weight: 3.70ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 7.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 724294
Weight: 3.70ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 35.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 640721
Weight: 1.74ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 50.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 723375
Weight: 1.66ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 474203
Weight: 1.70ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 15.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 650197
Weight: 3.80ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 31.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 734963
Weight: 2.74ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 367251
Weight: 7.57ct (total)
Size: 8 mm (calibrated)
Clarity: Transparent/Translucent
Content: 4 pcs
Price: $ 49.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 569467
Weight: 2.61ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 19.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 662712
Weight: 1.74ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 14.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 452287
Weight: 4.97ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 41.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 723268
Weight: 1.86ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 17.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 723586
Weight: 1.78ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 17.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 709788
Weight: 1.49ct
Size: 8.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 4.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 699574
Weight: 3.32ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 11.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 700539
Weight: 1.72ct
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 6.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 650578
Weight: 3.24ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 27.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 586427
Weight: 1.68ct
Size: 7.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 110.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 725826
Weight: 1.47ct
Size: 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 58.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 724141
Weight: 1.60ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 656208
Weight: 1.54ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 474924
Weight: 1.78ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 16.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 700056
Weight: 3.27ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 11.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 723466
Weight: 1.89ct
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 18.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 700393
Weight: 3.06ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 11.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 603004
Weight: 1.56ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 41.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 474574
Weight: 1.81ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 16.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 539129
Weight: 3.37ct (total)
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 44.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 428162
Weight: 3.53ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 9.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 686207
Weight: 1.98ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 400391
Weight: 2.47ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 32.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 599812
Weight: 2.22ct
Size: 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 29.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 687811
Weight: 1.54ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 1.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 716129
Weight: 4.02ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 38.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 485993
Weight: 3.02ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 21.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 655862
Weight: 1.43ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 34.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 398802
Weight: 3.38ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 31.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 734991
Weight: 3.55ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 699571
Weight: 3.39ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 12.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 647637
Weight: 3.99ct (total)
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 474113
Weight: 1.84ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 17.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 662708
Weight: 2.05ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 17.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 474891
Weight: 1.77ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 16.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 586441
Weight: 1.52ct
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 100.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 723380
Weight: 1.65ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 442832
Weight: 3.27ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 7.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 688872
Weight: 2.71ct (total)
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 14.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 722542
Weight: 3.12ct
Size: 8 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 336.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 455162
Weight: 4.30ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 36.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 716136
Weight: 3.54ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 33.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 661894
Weight: 1.91ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 398717
Weight: 6.92ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 45.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 524538
Weight: 4.75ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 44.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 326201
Weight: 1.86ct
Size: 7.5 mm (calibrated)
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 6.62
Item in Stock
More Options & Item Details
Add to Cart

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!

Posted By TheP in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

great experience

Posted By T in December, 2024
Source: Bizrate

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 8 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

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!

Posted By TheP in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

great experience

Posted By T in December, 2024
Source: Bizrate
Enlarged Gemstone Image