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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

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For Example: 8-9
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Blue Blue Round Gems
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0.77ct Twilight Blue Sapphire, Round, VVS-VS

5.5 mm (calibrated)

$ 568.13

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0.04ct Blue Diamond, Round, VS-SI

2.4 mm (calibrated)

$ 40.00

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4.09ctw Swiss Blue Topaz, Round, VVS-VS

8 mm (calibrated)

$ 37.79

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15.55ctw Light Purplish Blue Chalcedony, Round, Transparent

13 mm (calibrated)

$ 20.53

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13.20ctw Violet Blue Chalcedony, Round, Translucent

13 mm (calibrated)

$ 15.84

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18.92ct Purplish Blue Chalcedony, Round, Opaque

24.6 mm

$ 56.76

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1.10ct Vivid Blue Kyanite, Round, SI

6 mm (calibrated)

$ 33.00

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1.52ct Intense Violet Blue Tanzanite, Round, VVS

7 mm (calibrated)

$ 541.60

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0.47ctw True Blue Kyanite, Round, VS-SI

3.7 mm

$ 10.15

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1.19ct Dark Blue Kyanite, Round, SI

6 mm (calibrated)

$ 35.70

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0.07ct Blue Diamond, Round, SI

2.4 mm (calibrated)

$ 109.20

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0.94ctw Greenish Blue Sapphire, Round, VS

4 mm (calibrated)

$ 124.08

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12.15ct Deep Blue Color-Change Fluorite, Round, VS

14 mm (calibrated)

$ 402.23

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0.06ct Blue Diamond, Round, VVS-VS

2.4 mm (calibrated)

$ 93.60

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0.33ctw Intense Blue Apatite, Round, VS-SI

3.5 mm (calibrated)

$ 8.48

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1.85ctw Light Blue Zircon, Round, VVS-VS

4.5 mm (calibrated)

$ 29.30

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0.45ct True Blue Kyanite, Round, SI

4 mm (calibrated)

$ 13.50

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1.30ctw Deep Blue Kyanite, Round, SI

5 mm (calibrated)

$ 24.70

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0.04ct Blue Diamond, Round, VVS-VS

2.1 mm (calibrated)

$ 58.67

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0.47ct Royal Blue Kyanite, Round, SI

5 mm (calibrated)

$ 14.10

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0.55ct True Blue Kyanite, Round, SI

4.3 mm

$ 16.50

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1.21ctw Dark Blue Sapphire, Round, VS

5 mm (calibrated)

$ 638.88

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4.84ct Medium Blue Zircon, Round, VVS

8.5 mm (calibrated)

$ 766.66

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0.33ctw Light Blue Tanzanite, Round, VVS-VS

3.1 mm

$ 23.76

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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 -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 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 -> 10 star ratings

I love the product and the details about each of them.

Posted By Love It! in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate
Enlarged Gemstone Image