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

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ID: 702986
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 72.00
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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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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: 695038
Weight: 0.04ct
Size: 2.2 mm
Clarity: VVS
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: 718883
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 67.34
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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: 719086
Weight: 0.04ct
Size: 2.2 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 53.87
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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: 694939
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 60.00
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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: 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: 719731
Weight: 0.09ct
Size: 2.5 x 2.4 mm
Clarity: SI
Content: 1 pc
Price: $ 121.21
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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: 702707
Weight: 0.02ct
Size: 2.1 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 24.44
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ID: 718970
Weight: 0.05ct
Size: 2 x 1.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 67.34
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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: 719092
Weight: 0.06ct
Size: 2 x 2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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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: 719649
Weight: 0.07ct
Size: 2.3 x 2.2 mm
Clarity: VS
Content: 1 pc
Price: $ 94.27
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ID: 692861
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 60.00
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ID: 719059
Weight: 0.07ct
Size: 2.6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 94.27
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ID: 692848
Weight: 0.04ct
Size: 2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 48.00
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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: 719737
Weight: 0.08ct
Size: 2.6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 107.74
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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: 719093
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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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: 703040
Weight: 0.02ct
Size: 1.9 mm
Clarity: VS
Content: 1 pc
Price: $ 29.33
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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: 720067
Weight: 0.04ct
Size: 2 x 2 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 53.87
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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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ID: 719052
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 67.34
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ID: 719048
Weight: 0.07ct
Size: 2.3 x 2.3 mm
Clarity: VS
Content: 1 pc
Price: $ 94.27
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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: 695344
Weight: 0.04ct
Size: 2.2 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 40.00
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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: 719455
Weight: 0.07ct
Size: 2.3 x 2.3 mm
Clarity: VS
Content: 1 pc
Price: $ 94.27
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ID: 692878
Weight: 0.04ct
Size: 2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 48.00
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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: 702954
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 84.00
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ID: 719980
Weight: 0.05ct
Size: 1.9 x 1.9 mm
Clarity: VS
Content: 1 pc
Price: $ 67.34
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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: 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: 717352
Weight: 0.06ct
Size: 2.3 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 93.60
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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: 692898
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 50.00
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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: 719294
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 80.81
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ID: 720071
Weight: 0.08ct
Size: 2.4 x 2.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 107.74
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ID: 703189
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
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ID: 692893
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 72.00
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ID: 719735
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 33.67
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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: 719647
Weight: 0.04ct
Size: 2 x 2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 53.87
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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: 719051
Weight: 0.05ct
Size: 2.1 x 2.1 mm
Clarity: VS
Content: 1 pc
Price: $ 67.34
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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: 718771
Weight: 0.02ct
Size: 2 x 1.8 mm
Clarity: VS
Content: 1 pc
Price: $ 26.94
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ID: 719422
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 94.27
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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 -> 10 star ratings

I just bought some mystic quartz. Checkout was smooth and pleasant

Posted By Jay in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good shopping experience. Website is relatively easy to use. Prices are good.

Posted By Bleep in August, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mmThanks

Posted By Ibie in February, 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

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD in April, 2025
Source: Bizrate

Understanding the Value of Loose Blue Diamonds

Loose blue diamonds are prized for their rarity and stunning beauty. These natural blue diamonds are available in a variety of shapes and sizes, making them perfect for custom jewelry designs. Factors such as clarity, color intensity, and cut quality play a significant role in determining their value. Whether you are purchasing blue loose diamonds for investment or a special occasion, each stone offers a timeless allure.

Why Choose GIA-Certified Blue Diamonds?

A GIA-certified blue diamond ensures that your gemstone meets the highest standards of quality. Certification verifies the authenticity of the blue diamond and provides detailed information about its cut, clarity, and carat weight. Our collection includes loose fancy diamonds and rare blue diamonds with certification for added peace of mind.

Popular Uses for Fancy Blue Diamonds

From creating stunning blue diamond engagement rings to designing bespoke jewelry, loose blue diamonds are incredibly versatile. Their unique vivid blue color makes them a popular choice for statement pieces. Explore our range of natural blue diamonds and loose diamonds to find the perfect stone for your next masterpiece.

Care and Maintenance for Your Loose Diamonds

To maintain the brilliance of your loose blue diamonds, regular cleaning and proper storage are essential. Avoid exposing your blue diamond to harsh chemicals, and store it separately to prevent scratches. Our collection of GIA-certified blue diamonds is designed to last a lifetime with the right care.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I just bought some mystic quartz. Checkout was smooth and pleasant

Posted By Jay in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good shopping experience. Website is relatively easy to use. Prices are good.

Posted By Bleep in August, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mmThanks

Posted By Ibie in February, 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

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD in April, 2025
Source: Bizrate

FAQ's

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.

Enlarged Gemstone Image