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

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0.07ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 55.78

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0.16ctw Black Diamond, Square, Opaque

2.1 x 2 mm

$ 79.68

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0.04ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 11.62

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0.10ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 29.05

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0.09ct Black Diamond, Round, Opaque

2.8 mm (calibrated)

$ 30.81

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0.07ct Black Diamond, Square, Opaque

1.9 x 1.8 mm

$ 34.86

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

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0.05ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 17.11

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

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0.08ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 63.74

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0.03ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 10.27

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0.23ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 109.41

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0.23ctw Black Diamond, Round, Opaque

3 mm (calibrated)

$ 91.18

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0.07ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 19.97

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0.05ct Black Diamond, Round, Opaque

2.3 mm (calibrated)

$ 17.11

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

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0.22ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 104.66

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0.04ct Black Diamond, Square, Opaque

1.8 x 1.8 mm

$ 19.92

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0.05ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 14.53

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0.85ct Black Diamond, Round, Opaque

5.5 mm (calibrated)

$ 677.28

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0.05ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 10.75

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0.06ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 29.03

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0.08ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 63.74

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0.07ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 33.87

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GemSelect Certified Store Reviews

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Overall Rating -> 10

Although the stones are smaller than I thought, I really don't think in millimeters, they are perfect. I plan to put one into a ring and the other into a necklace. Ordering was easy, contact kept me aware of how shipping was going, and delivery was sooner than expected. The quality of stones I have ordered in the past and this recent order is outstanding and stones I will be proud to wear.

Posted By Ktreva52 in June, 2026

Source: Bizrate

Overall Rating -> 9

All good

Posted By Oliver in September, 2025

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Overall Rating -> 10

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025

Source: Bizrate

Overall Rating -> 10

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026

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Overall Rating -> 9

Ita's a pretty good and simple way to find gems that youa're looking for amazing selection

Posted By Amman in May, 2026

Source: Bizrate

Overall Rating -> 9

It was great!

Posted By Annie in September, 2025

Source: Bizrate

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