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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0.11ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 31.96

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0.10ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 49.80

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0.32ct Black Diamond, Square, Opaque

3.3 x 3.2 mm

$ 159.36

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0.12ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 59.76

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0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 13.28

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0.07ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 20.34

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0.12ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 57.09

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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

2.5 mm (calibrated)

$ 20.60

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

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0.08ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 27.38

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0.22ctw Black Diamond, Square, Opaque

2.3 x 2.2 mm

$ 109.56

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0.10ct Black Diamond, Round, Opaque

2.7 mm (calibrated)

$ 27.15

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0.07ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 55.78

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0.07ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 33.87

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0.02ct Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 15.94

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0.12ct Black Diamond, Square, Opaque

2.7 x 2.6 mm

$ 49.80

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0.09ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 26.15

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0.06ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 29.03

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0.20ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 95.15

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0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 13.28

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

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0.08ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 63.74

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GemSelect Certified Store Reviews

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Overall Rating -> 10

The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026

Source: Bizrate

Overall Rating -> 10

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026

Source: Bizrate

Overall Rating -> 8

The website was easy to use and there were a lot of good options, I was satisfied.

Posted By Brielly in January, 2026

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Overall Rating -> 10

Good. I ts very user friendly.

Posted By Shalini in June, 2025

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Overall Rating -> 9

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025

Source: Bizrate

Overall Rating -> 10

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

Posted By Tree Dog in April, 2026

Source: Bizrate

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