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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: 692909
Weight: 0.07ct
Size: 2.6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 83.40
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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: 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: 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: 719645
Weight: 0.03ct
Size: 1.8 x 1.8 mm
Clarity: VS
Content: 1 pc
Price: $ 40.40
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ID: 703288
Weight: 0.03ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
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ID: 720094
Weight: 0.07ct
Size: 2.2 x 2.2 mm
Clarity: VS-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: 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: 702706
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 44.00
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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: 692879
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 60.00
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ID: 720066
Weight: 0.02ct
Size: 1.8 x 1.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 22.45
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ID: 718881
Weight: 0.05ct
Size: 2.1 x 2.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 67.34
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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: 719461
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 33.67
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ID: 702989
Weight: 0.03ct
Size: 2 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 44.00
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ID: 695539
Weight: 0.04ct
Size: 2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 48.00
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ID: 702977
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 72.00
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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: 719648
Weight: 0.04ct
Size: 1.9 x 1.8 mm
Clarity: VS
Content: 1 pc
Price: $ 53.87
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ID: 692897
Weight: 0.06ct
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 72.00
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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: 695081
Weight: 0.04ct
Size: 2.2 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 40.00
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ID: 692765
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 100.08
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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: 692760
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 71.49
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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: 692865
Weight: 0.06ct
Size: 2.4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 72.00
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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: 719984
Weight: 0.03ct
Size: 2.1 x 1.7 mm
Clarity: VS
Content: 1 pc
Price: $ 40.40
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ID: 719426
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 80.81
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ID: 719644
Weight: 0.04ct
Size: 2.1 mm (calibrated)
Clarity: VS
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: 692883
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 60.00
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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: 719085
Weight: 0.07ct
Size: 2.6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 94.27
Item in Stock
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ID: 719456
Weight: 0.08ct
Size: 2.3 x 2.1 mm
Clarity: VS
Content: 1 pc
Price: $ 107.74
Item in Stock
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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: 703239
Weight: 0.05ct
Size: 2.4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 73.33
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ID: 720064
Weight: 0.03ct
Size: 2 x 2 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.67
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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: 719981
Weight: 0.04ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.89
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ID: 703396
Weight: 0.03ct
Size: 2.1 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 36.67
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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: 718928
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 80.81
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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: 703398
Weight: 0.02ct
Size: 1.8 mm
Clarity: SI
Content: 1 pc
Price: $ 29.33
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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: 703236
Weight: 0.03ct
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
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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: 692757
Weight: 0.07ct
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 83.40
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ID: 692853
Weight: 0.05ct
Size: 2.4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 60.00
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ID: 719289
Weight: 0.07ct
Size: 2.7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 94.27
Item in Stock
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ID: 719646
Weight: 0.08ct
Size: 2.4 x 2.4 mm
Clarity: VS
Content: 1 pc
Price: $ 107.74
Item in Stock
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ID: 702988
Weight: 0.02ct
Size: 1.7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 29.33
Item in Stock
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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: 702980
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 72.00
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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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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

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All Good

Posted By Boru in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site

Posted By Bern in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Great site always looking for great deals and find them on this site

Posted By IRO5812 in July, 2024
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

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very professional site

Posted By JR in January, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Okay thank you.

Posted By Bepc61 in March, 2025
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

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

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All Good

Posted By Boru in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site

Posted By Bern in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Great site always looking for great deals and find them on this site

Posted By IRO5812 in July, 2024
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

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very professional site

Posted By JR in January, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Okay thank you.

Posted By Bepc61 in March, 2025
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

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