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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: 702949
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 50.00
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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: 720062
Weight: 0.05ct
Size: 2 x 2 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 56.12
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ID: 718972
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 67.34
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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: 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: 702976
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 60.00
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ID: 720072
Weight: 0.06ct
Size: 2.2 x 2.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 80.81
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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: 692877
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 60.00
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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: 720069
Weight: 0.05ct
Size: 2.2 x 2.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 67.34
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ID: 719052
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 67.34
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ID: 692881
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 60.00
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ID: 702707
Weight: 0.02ct
Size: 2.1 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 24.44
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ID: 719086
Weight: 0.04ct
Size: 2.2 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 53.87
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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: 719456
Weight: 0.08ct
Size: 2.3 x 2.3 mm
Clarity: VS
Content: 1 pc
Price: $ 89.76
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ID: 718888
Weight: 0.06ct
Size: 2.2 x 2.1 mm
Clarity: VS-SI
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: 695605
Weight: 0.03ct
Size: 2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.00
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ID: 703292
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 73.33
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ID: 719407
Weight: 0.38ct
Size: 4.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 511.76
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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: 719096
Weight: 0.03ct
Size: 2 x 2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 40.40
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ID: 702974
Weight: 0.04ct
Size: 2.3 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.00
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ID: 719989
Weight: 0.08ct
Size: 2.5 x 2.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 107.74
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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: 719285
Weight: 0.03ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 40.40
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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: 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: 719982
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 94.27
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ID: 719648
Weight: 0.04ct
Size: 1.9 x 1.8 mm
Clarity: VS
Content: 1 pc
Price: $ 53.87
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ID: 717362
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 78.00
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ID: 717374
Weight: 0.03ct
Size: 2.1 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.80
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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: 717350
Weight: 0.07ct
Size: 2.4 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 109.20
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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: 719295
Weight: 0.06ct
Size: 2.2 x 2.1 mm
Clarity: VS
Content: 1 pc
Price: $ 80.81
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ID: 703289
Weight: 0.04ct
Size: 2 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.67
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ID: 718932
Weight: 0.04ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 44.89
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ID: 719739
Weight: 0.05ct
Size: 2.4 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 56.12
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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: 702958
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 70.00
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ID: 692884
Weight: 0.04ct
Size: 2.1 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 48.00
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ID: 702981
Weight: 0.05ct
Size: 2.1 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 50.00
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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: 720092
Weight: 0.06ct
Size: 2.2 x 2.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 80.81
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ID: 719646
Weight: 0.08ct
Size: 2.4 x 2.4 mm
Clarity: VS
Content: 1 pc
Price: $ 107.74
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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: 719050
Weight: 0.02ct
Size: 1.9 x 1.9 mm
Clarity: VS
Content: 1 pc
Price: $ 26.94
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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: 703187
Weight: 0.04ct
Size: 2.1 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 58.67
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ID: 719729
Weight: 0.08ct
Size: 2.3 x 2.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 107.74
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ID: 719650
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 80.81
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ID: 720095
Weight: 0.03ct
Size: 2.3 x 1.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.67
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ID: 717354
Weight: 0.04ct
Size: 2.2 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 52.00
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ID: 719051
Weight: 0.05ct
Size: 2.1 x 2.1 mm
Clarity: VS
Content: 1 pc
Price: $ 67.34
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ID: 702796
Weight: 0.03ct
Size: 2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
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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

Great website, easy to navigate, and loads quickly. Have bought here before, very pleased!

Posted By SallyO in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
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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

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate
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