X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Round Blue Gemstones

Explore a stunning selection of natural round blue gemstones perfect for jewelry and collectors.

Blue Round Gems Weight
Blue Round Gems Size
Blue Round Gems Clarity
Blue Round Gems Price
Blue Round Gems Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black
Blue Blue Round Gems
Brown
Golden
Gray
Green
Multicolor
Orange
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
Clear All

0.53ct True Blue Kyanite, Round, SI

4.3 mm

$ 15.90

View Details

0.60ctw Light Navy Blue Kyanite, Round, VS-SI

3.7 mm

$ 12.96

View Details

11.83ct Dark Blue Color-Change Fluorite, Round, VS

14 mm (calibrated)

$ 312.31

View Details

0.24ct Deep Azure Blue Apatite, Round, VS

3.5 mm (calibrated)

$ 6.17

View Details

0.48ctw Intense Navy Blue Kyanite, Round, VS

3.5 mm (calibrated)

$ 14.40

View Details

0.07ct Blue Diamond, Round, SI

2.5 mm (calibrated)

$ 94.27

View Details

0.40ctw Deep Baby Blue Apatite, Round, VS-SI

3.5 mm (calibrated)

$ 10.28

View Details

0.78ctw Royal Blue Kyanite, Round, VS-SI

4.4 mm

$ 19.50

View Details

0.80ct Light Navy Blue Kyanite, Round, SI

6 mm (calibrated)

$ 24.00

View Details

0.73ctw Medium Navy Blue Kyanite, Round, VS-SI

4.2 mm

$ 21.90

View Details

0.06ct Blue Diamond, Round, VS-SI

2.5 mm (calibrated)

$ 80.81

View Details

0.45ctw Navy Blue Kyanite, Round, VS-SI

3.5 mm (calibrated)

$ 9.72

View Details

0.76ct Dark Blue Kyanite, Round, VS-SI

5.2 mm

$ 18.24

View Details

2.08ctw Baby Blue Zircon, Round, VVS-VS

4.5 mm (calibrated)

$ 32.95

View Details

4.72ctw Sky Blue Topaz, Round, VVS-VS

8 mm (calibrated)

$ 43.61

View Details

1.09ctw Light Blue Zircon, Round, VS

4.7 mm

$ 34.54

View Details

0.40ct Intense Navy Blue Kyanite, Round, VS-SI

4.2 mm

$ 12.00

View Details

0.40ct Navy Blue Kyanite, Round, SI

4.2 mm

$ 12.00

View Details

0.48ctw Navy Blue Kyanite, Round, VS-SI

3.5 mm (calibrated)

$ 10.37

View Details

0.94ct Deep Blue Kyanite, Round, SI-I1

6 mm (calibrated)

$ 31.02

View Details

0.41ct Deep Blue Sapphire, Round, Transparent

4 mm (calibrated)

$ 11.30

View Details

0.45ct Very Deep Blue Kyanite, Round, VS-SI

4.2 mm

$ 13.50

View Details

0.31ct Deep Azure Blue Kyanite, Round, VS-SI

4 mm (calibrated)

$ 9.30

View Details

6.20ctw Swiss Blue Topaz, Round, VS

9 mm (calibrated)

$ 52.30

View Details

Why Buy Blue Round Gems from GemSelect?

Natural Round Blue Gemstones

Our natural round blue gemstones are carefully selected for color, clarity, and brilliance. These loose blue round gems include popular varieties such as sapphire, aquamarine, blue topaz, and spinel, offering exceptional beauty for jewelry and gemstone collections.

Loose Blue Round Gems Online

Shop loose blue round gems online with confidence at GemSelect. Every gemstone is photographed individually and includes detailed specifications so you know exactly what you are purchasing.

Loose Round Blue Gemstones for Jewelry

Round Blue Gemstones for Jewelry

Round blue gemstones are one of the most popular choices for jewelry due to their timeless shape and brilliant sparkle. They are ideal for engagement rings, earrings, pendants, and custom jewelry designs.

Popular Types of Blue Round Gems

Some of the most sought-after round blue gemstones include sapphire, aquamarine, blue topaz, tanzanite, and spinel. Each gemstone offers unique color tones ranging from light sky blue to deep royal blue.

Faceted Round Blue Stones

Faceted round blue stones are cut to maximize brilliance and light reflection. The classic round brilliant cut enhances the natural beauty of blue gemstones, making them sparkle in any jewelry setting.

Calibrated Round Blue Gemstones

Calibrated round blue gemstones are cut to standard sizes such as 4 mm, 5 mm, or 6 mm. These precise sizes make them ideal for jewelry settings that require uniform stones.

Buying Loose Blue Round Gems

Buying loose blue round gems allows you to choose the exact gemstone for your jewelry project. Whether you are designing a ring, pendant, or earrings, loose stones provide flexibility and customization.

Wholesale Blue Round Gemstones

GemSelect offers competitive pricing for both individual buyers and wholesale gemstone purchases. Jewelers and collectors can find high-quality round blue gemstones in a wide range of sizes and price points.

Learn more about the characteristics and varieties of blue gemstones on our Blue Gemstones Information Page.

FAQs

What are the most popular round blue gemstones?

Popular round blue gemstones include sapphire, aquamarine, blue topaz, spinel, and tanzanite. These stones are prized for their vibrant blue colors and durability.

Why are round gemstones popular for jewelry?

The round cut maximizes brilliance and light reflection, making gemstones appear brighter and more sparkling. It is also one of the most classic and versatile shapes for jewelry.

Are round blue gemstones suitable for engagement rings?

Yes, many round blue gemstones such as sapphire are durable enough for engagement rings. Their timeless appearance and vibrant color make them a popular alternative to diamonds.

Do round blue gemstones come in calibrated sizes?

Yes, many round blue gemstones are available in calibrated sizes such as 3 mm, 4 mm, 5 mm, and 6 mm, making them easy to set into standard jewelry mountings.

Are the blue gemstones at GemSelect natural?

Yes, all gemstones offered by GemSelect are natural. Any treatments applied to enhance color or clarity are fully disclosed for transparency.

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 for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I can pick and choose from large selection and find just what I need for .y projects, currently my cane.

Posted By Darkstar731 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

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
Enlarged Gemstone Image