What are loose diamonds, and why should I consider buying them?

Loose diamonds are individual diamond stones that are not yet set in jewelry. They provide greater flexibility, allowing buyers to choose their preferred setting, style, and design. Purchasing a loose diamond also gives you the opportunity to inspect its quality based on factors like clarity, color, and carat weight before it is mounted.

Where can I find certified loose diamonds for sale?

You can find certified loose diamonds at reputable online stores and authorized loose diamond dealers. Make sure to look for GIA loose diamonds, as GIA certification is a trusted standard for assessing a diamond's quality, including its cut, color grading, and clarity.

How do I determine the best loose diamond shapes and cuts?

Choosing the right shape and cut is important for maximizing a diamond's brilliance. Popular loose diamond shapes include round, princess, cushion, and oval. Each shape has its unique appeal, while the cut impacts the stone’s sparkle. A good loose diamond buying guide can help you understand the various options available.

Are natural loose diamonds better than lab-grown options?

Natural loose diamonds are formed over millions of years, while lab-grown diamonds are created in controlled environments. Both can be of high quality, but natural diamonds are often valued more for their rarity. When purchasing, ensure the stone is certified for authenticity, especially if you want a conflict-free loose diamond.

What should I know about loose diamond prices and wholesale options?

The price of a loose diamond depends on its carat weight, clarity, color grading, and cut. If you’re looking to save, consider loose diamond wholesale options, where you can find stones at lower prices. Wholesale purchases often provide better value, especially for bulk orders or custom jewelry projects.

How can I ensure I’m buying a high-quality loose diamond online?

To ensure you’re buying a high-quality stone, choose a reputable online loose diamond store that offers GIA certified loose diamonds. Review the diamond’s specifications, including its clarity, cut, and color grading, and ask for detailed certification documents.

Shop Loose Diamonds - Certified Natural Gemstones & Conflict-Free

Blue Diamond

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 Diamond

Yellow Diamond

Single

Pairs

Lots

Faceted

Cabochons

Clear All

0.11ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 31.96

View Gem

0.10ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 49.80

View Gem

0.32ct Black Diamond, Square, Opaque

3.3 x 3.2 mm

$ 159.36

View Gem

0.12ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 59.76

View Gem

0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 13.28

View Gem

0.07ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 20.34

View Gem

0.12ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 57.09

View Gem

0.08ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 63.74

View Gem

0.07ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 20.60

View Gem

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

View Gem

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

View Gem

0.08ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 27.38

View Gem

0.22ctw Black Diamond, Square, Opaque

2.3 x 2.2 mm

$ 109.56

View Gem

0.10ct Black Diamond, Round, Opaque

2.7 mm (calibrated)

$ 27.15

View Gem

0.07ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 55.78

View Gem

0.07ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 33.87

View Gem

0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 15.94

View Gem

0.12ct Black Diamond, Square, Opaque

2.7 x 2.6 mm

$ 49.80

View Gem

0.09ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 26.15

View Gem

0.06ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 29.03

View Gem

0.20ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 95.15

View Gem

0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 13.28

View Gem

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

View Gem

0.08ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 63.74

View Gem

« 1 2 3

...

5 »

Choose Page

1 - 16

Why Buy Diamond from GemSelect?

Trusted Worldwide Since 2003
Supplying natural gemstones to jewelers and collectors in 120+ countries
Verified natural gemstones
View All GemSelect Reviews on Bizrate
Secure checkout and insured worldwide delivery
30-day returns and satisfaction guarantee

GemSelect Certified Store Reviews

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

Overall Rating -> 10

I have been very happy with my prior purchases and enjoy the website experience.

Posted By Trouble in November, 2025

Source: Bizrate

Overall Rating -> 10

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026

Source: Bizrate

Overall Rating -> 10

Easy to use website

Posted By Mel in February, 2026

Source: Bizrate

Overall Rating -> 10

Very neat and to the point

Posted By Botha in March, 2026

Source: Bizrate

Overall Rating -> 10

I could see the actual gem I was buying

Posted By Bugs in December, 2025

Source: Bizrate

Overall Rating -> 10

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025

Source: Bizrate

→ View All GemSelect Reviews on Bizrate