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

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

Explore our loose blue diamonds, featuring natural blue diamonds, fancy blue diamonds, and GIA-certified blue diamonds. Perfect for creating unique jewelry or adding to your collection, these rare blue diamonds are available in a range of cuts, clarity, and sizes. Whether you're seeking vivid blue diamonds for an engagement ring or a loose fancy diamond for a bespoke design, you'll find unmatched quality and beauty here.

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ID: 692762
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 85.79
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ID: 692909
Weight: 0.07ct
Size: 2.6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 83.40
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ID: 702949
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 50.00
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ID: 720062
Weight: 0.05ct
Size: 2 x 2 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 56.12
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ID: 719287
Weight: 0.04ct
Size: 2.2 x 2.1 mm
Clarity: VS
Content: 1 pc
Price: $ 53.87
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ID: 719457
Weight: 0.09ct
Size: 2.6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 121.21
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ID: 702959
Weight: 0.06ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 72.00
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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: 720068
Weight: 0.07ct
Size: 2.4 x 2.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 94.27
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ID: 703244
Weight: 0.03ct
Size: 2.1 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
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ID: 719464
Weight: 0.04ct
Size: 2.4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 53.87
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ID: 718969
Weight: 0.08ct
Size: 2.5 x 2.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 89.78
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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: 692860
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 50.00
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ID: 718886
Weight: 0.07ct
Size: 2.3 x 2.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 78.56
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ID: 702723
Weight: 0.02ct
Size: 1.9 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 24.44
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ID: 702985
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 72.00
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ID: 692849
Weight: 0.04ct
Size: 2.4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 40.00
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ID: 719737
Weight: 0.08ct
Size: 2.6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 107.74
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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: 717368
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 93.60
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ID: 719987
Weight: 0.07ct
Size: 2.4 x 2.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 94.27
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ID: 692859
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 72.00
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ID: 703236
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
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ID: 695608
Weight: 0.04ct
Size: 2.1 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 48.00
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ID: 695526
Weight: 0.05ct
Size: 2.4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 50.00
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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: 719095
Weight: 0.04ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 53.87
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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: 695031
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 60.00
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ID: 703239
Weight: 0.05ct
Size: 2.4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 73.33
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ID: 719731
Weight: 0.09ct
Size: 2.5 x 2.4 mm
Clarity: SI
Content: 1 pc
Price: $ 121.21
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ID: 719294
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 80.81
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ID: 692759
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 85.79
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ID: 702963
Weight: 0.04ct
Size: 2.1 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 48.00
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ID: 702975
Weight: 0.05ct
Size: 2.1 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 60.00
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ID: 692907
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 100.08
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ID: 702988
Weight: 0.02ct
Size: 1.7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 29.33
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ID: 692845
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 60.00
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ID: 719988
Weight: 0.07ct
Size: 2.4 x 2.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 94.27
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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: 719728
Weight: 0.06ct
Size: 2.2 x 2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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ID: 692877
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 60.00
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ID: 692757
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 83.40
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ID: 718928
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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ID: 692760
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 71.49
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ID: 692756
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 100.08
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ID: 703287
Weight: 0.02ct
Size: 1.7 mm
Clarity: VS
Content: 1 pc
Price: $ 29.33
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ID: 719296
Weight: 0.05ct
Size: 2.4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 67.34
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ID: 692856
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 50.00
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ID: 702954
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 84.00
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ID: 702948
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.00
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ID: 702721
Weight: 0.02ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.44
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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: 702709
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 88.00
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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: 718764
Weight: 0.06ct
Size: 2.1 x 1.9 mm
Clarity: VS
Content: 1 pc
Price: $ 80.81
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ID: 702982
Weight: 0.04ct
Size: 2.1 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 48.00
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ID: 720096
Weight: 0.02ct
Size: 1.8 x 1.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 22.45
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ID: 717356
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 109.20
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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 -> 9 star ratings

Fast and reliable service.

Posted By Zæck in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, package and info of your gems.

Posted By Diana in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!

Posted By Orphanboy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 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

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
Source: Bizrate

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

The stones are very nice.

Posted By Mvk in August, 2025
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Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
Source: Bizrate
Enlarged Gemstone Image