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

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ID: 692857
Weight: 0.03ct
Size: 1.9 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 36.00
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ID: 702709
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 88.00
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ID: 720061
Weight: 0.04ct
Size: 2.4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 53.87
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ID: 702953
Weight: 0.08ct
Size: 2.7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 96.00
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ID: 719461
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 33.67
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ID: 692754
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 83.40
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ID: 719728
Weight: 0.06ct
Size: 2.2 x 2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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ID: 702706
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 44.00
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ID: 692894
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 60.00
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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: 719093
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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ID: 718934
Weight: 0.07ct
Size: 2.6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 94.27
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ID: 692865
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 72.00
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ID: 719647
Weight: 0.04ct
Size: 2 x 2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 53.87
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ID: 718931
Weight: 0.07ct
Size: 2.6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 94.27
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ID: 692882
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 60.00
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ID: 702705
Weight: 0.12ct
Size: 3 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 146.66
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ID: 717367
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 78.00
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ID: 719643
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 67.34
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ID: 695031
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 60.00
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ID: 719733
Weight: 0.04ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 53.87
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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

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate
Enlarged Gemstone Image