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Loose Blue Diamonds for Sale – Natural and Fancy Blue Diamond Stones, Certified Diamond

Blue Diamond Weight
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ID: 719644
Weight: 0.04ct
Size: 2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 53.87
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ID: 718889
Weight: 0.06ct
Size: 2.3 x 2.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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ID: 702956
Weight: 0.05ct
Size: 2.1 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 60.00
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ID: 718765
Weight: 0.03ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 40.40
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ID: 719286
Weight: 0.03ct
Size: 2.1 x 2 mm
Clarity: VS
Content: 1 pc
Price: $ 40.40
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ID: 719459
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 80.81
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ID: 692879
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 60.00
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ID: 720093
Weight: 0.05ct
Size: 2.2 x 2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 67.34
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ID: 718964
Weight: 0.02ct
Size: 1.7 x 1.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 22.45
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ID: 719734
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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ID: 702722
Weight: 0.07ct
Size: 2.6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 102.66
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ID: 719649
Weight: 0.07ct
Size: 2.3 x 2.2 mm
Clarity: VS
Content: 1 pc
Price: $ 94.27
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ID: 692857
Weight: 0.03ct
Size: 2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 36.00
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ID: 719085
Weight: 0.07ct
Size: 2.6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 94.27
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ID: 702976
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 60.00
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ID: 692846
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 60.00
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ID: 719984
Weight: 0.03ct
Size: 2.1 x 1.7 mm
Clarity: VS
Content: 1 pc
Price: $ 40.40
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ID: 719420
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 94.27
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ID: 703398
Weight: 0.02ct
Size: 1.8 mm
Clarity: SI
Content: 1 pc
Price: $ 29.33
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ID: 717350
Weight: 0.07ct
Size: 2.4 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 109.20
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ID: 719645
Weight: 0.03ct
Size: 1.8 x 1.8 mm
Clarity: VS
Content: 1 pc
Price: $ 40.40
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ID: 692905
Weight: 0.08ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 114.38
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ID: 702715
Weight: 0.02ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 29.33
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ID: 718966
Weight: 0.08ct
Size: 2.3 x 2.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 107.74
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Why Buy Blue Diamond from GemSelect?

FAQs

What are loose blue diamonds?

Loose blue diamonds are unmounted, natural gemstones known for their stunning blue color and rarity. These gems are often used to create custom jewelry, such as engagement rings, or kept as investment pieces.

Are GIA-certified blue diamonds better?

Yes, GIA-certified blue diamonds are highly recommended as they guarantee the gemstone's authenticity, quality, and details like cut, clarity, and carat weight. Choosing GIA-certified loose blue diamonds ensures you’re purchasing a genuine and valuable stone.

What makes fancy blue diamonds unique?

Fancy blue diamonds are prized for their vivid blue color and are rarer than traditional diamonds. Their unique hues, combined with exceptional clarity and cuts, make them a favorite choice for collectors and jewelry designers.

Can I use loose blue diamonds for engagement rings?

Absolutely! Loose blue diamonds are perfect for custom engagement rings. Their natural beauty and versatility allow you to choose the ideal cut and setting for a unique and meaningful design.

How do I care for my loose blue diamonds?

To maintain the brilliance of your loose blue diamonds, clean them regularly with a soft cloth and mild soap. Avoid exposing them to harsh chemicals and store them separately to prevent scratches on the surface.

Are loose blue diamonds a good investment?

Yes, loose blue diamonds, especially rare or GIA-certified stones, are considered excellent investments due to their rarity and increasing market demand. Their natural beauty and timeless appeal make them valuable assets.

What factors determine the value of a loose blue diamond?

The value of a loose blue diamond depends on its color intensity, clarity, cut quality, and carat weight. Rare fancy blue diamonds or those with vivid blue hues often command higher prices.

Are there different cuts available for loose blue diamonds?

Yes, loose blue diamonds come in various cuts, including round, princess, emerald, and cushion. Each cut enhances the stone's brilliance and highlights its natural blue color.

What is the difference between natural and treated blue diamonds?

Natural blue diamonds derive their color from boron within the stone, while treated diamonds undergo processes like irradiation to achieve a blue hue. Natural blue diamonds, such as those in our collection, are more valuable and sought after.

Where can I buy high-quality loose blue diamonds?

You can find high-quality loose blue diamonds, including rare fancy blue diamonds and GIA-certified options, from trusted gemstone dealers. Look for vendors offering a wide selection of cuts, sizes, and colors to suit your needs.

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

Over pretty well experience the your website no complaints about it very easy reliable service provided

Posted By Blas in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate
Enlarged Gemstone Image