X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

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

Blue Diamond Weight
Blue Diamond Size
Blue Diamond Clarity
Blue Diamond Price

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue Blue Diamond
Brown
Gray
Green
Multicolor
Orange
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
X
Clear All
ID: 692878
Weight: 0.04
Size: 2 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 48.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 692755
Weight: 0.07
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 100.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 720069
Weight: 0.05
Size: 2.2 x 2.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 67.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 692759
Weight: 0.06
Size: 2.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 85.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 703189
Weight: 0.03
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 719645
Weight: 0.03
Size: 1.8 x 1.8 mm
Clarity: VS
Content: 1 pc
Price: $ 40.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 717360
Weight: 0.04
Size: 2.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 52.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 703292
Weight: 0.05
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 73.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 717354
Weight: 0.04
Size: 2.2 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 52.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 719646
Weight: 0.08
Size: 2.4 x 2.4 mm
Clarity: VS
Content: 1 pc
Price: $ 107.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 695605
Weight: 0.03
Size: 2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 719648
Weight: 0.04
Size: 1.9 x 1.8 mm
Clarity: VS
Content: 1 pc
Price: $ 53.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 703239
Weight: 0.05
Size: 2.4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 73.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 703289
Weight: 0.04
Size: 2.1 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 720067
Weight: 0.04
Size: 2 x 2 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 53.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 719985
Weight: 0.07
Size: 2.2 x 2 mm
Clarity: VS
Content: 1 pc
Price: $ 94.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 703396
Weight: 0.03
Size: 2.1 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 36.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 719649
Weight: 0.07
Size: 2.3 x 2.2 mm
Clarity: VS
Content: 1 pc
Price: $ 94.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 718765
Weight: 0.03
Size: 2.3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 40.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 703244
Weight: 0.03
Size: 2.1 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 703236
Weight: 0.03
Size: 2.2 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 719982
Weight: 0.07
Size: 2.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 94.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 695036
Weight: 0.04
Size: 2.1 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 48.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 719739
Weight: 0.05
Size: 2.4 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 56.12
Item in Stock
More Options & Item Details
Add to Cart

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

Love how easy the site is to use. Really love that the pictures are of actual product.

Posted By LeAnn in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I loved the selection of gemstones you have a to z

Posted By James in May, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 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
Enlarged Gemstone Image