90,000+Happy Customers
20+Years
WorldwideShipping
Cart
Free Report Included
Worldwide Shipping
30 Day Returns
Help Center Shipping Payment and Checkout Returns Certificates Contact Us
Home Gemstones Diamond

Shop Loose Diamonds - Certified Natural Gemstones & Conflict-Free

Diamond Weight
Diamond Size
Diamond Clarity
Diamond Price

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black Diamond
Blue Diamond
Brown Diamond
Golden
Gray
Green Diamond
Multicolor
Orange
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
Clear All

0.32ct Black Diamond, Square, Opaque

3.3 x 3.1 mm

$ 132.80

View Gem

0.06ct Black Diamond, Square, Opaque

1.9 x 1.9 mm

$ 29.88

View Gem

0.23ct Black Diamond, Square, Opaque

2.9 x 2.9 mm

$ 114.54

View Gem

0.22ct Black Diamond, Square, Opaque

2.9 x 2.8 mm

$ 109.56

View Gem

0.29ct Black Diamond, Square, Opaque

3.4 x 3.4 mm

$ 144.42

View Gem

0.18ctw Black Diamond, Square, Opaque

2.2 x 2.1 mm

$ 89.64

View Gem

0.20ct Black Diamond, Square, Opaque

2.8 x 2.8 mm

$ 99.60

View Gem

0.20ct Black Diamond, Square, Opaque

2.8 x 2.8 mm

$ 99.60

View Gem

0.15ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 74.70

View Gem

1.07ct Black Diamond, Square, Opaque

5 x 5 mm (calibrated)

$ 507.96

View Gem

0.39ctw Black Diamond, Square, Opaque

2.7 x 2.6 mm

$ 194.22

View Gem

0.34ct Black Diamond, Square, Opaque

3.3 x 3.2 mm

$ 141.10

View Gem

0.24ct Black Diamond, Square, Opaque

2.8 x 2.8 mm

$ 119.52

View Gem

0.13ctw Black Diamond, Square, Opaque

2.2 x 2.1 mm

$ 64.74

View Gem

0.68ct Black Diamond, Square, Opaque

4.2 x 4.1 mm

$ 338.64

View Gem

0.18ct Black Diamond, Square, Opaque

2.7 x 2.6 mm

$ 89.64

View Gem

0.29ct Black Diamond, Square, Opaque

3.2 x 3.2 mm

$ 144.42

View Gem

0.15ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 74.70

View Gem

0.28ct Black Diamond, Square, Opaque

3 x 3 mm (calibrated)

$ 139.44

View Gem

0.07ct Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 34.86

View Gem

0.11ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 54.78

View Gem

0.13ctw Black Diamond, Square, Opaque

1.9 x 1.9 mm

$ 64.74

View Gem

0.27ct Black Diamond, Square, Opaque

3.2 x 3.1 mm

$ 134.46

View Gem

0.14ctw Black Diamond, Square, Opaque

2.2 x 2.2 mm

$ 69.72

View Gem
1 2 3
Choose Page
1 - 4

Why Buy Diamond from GemSelect?

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

Good selection prices are reasonable!

Posted By ToRa62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The website was very easy to use.

Posted By Garnet in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The stones are very nice.

Posted By Mvk in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I've been looking for.

Posted By Tree Dog in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

Posted By Kelly in May, 2026
Source: Bizrate
Enlarged Gemstone Image