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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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0.49ct Navy Blue Kyanite, Round, SI

4 mm (calibrated)

$ 14.70

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0.43ct Deep Blue Kyanite, Round, SI

4.3 mm

$ 12.90

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0.64ct Navy Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 519.43

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0.41ct Pale Blue Aquamarine, Round, VVS-VS

5 mm (calibrated)

$ 68.88

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4.59ctw Swiss Blue Topaz, Round, VS

8 mm (calibrated)

$ 42.41

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0.70ct Midnight Blue Sapphire, Round, VS

5.5 mm (calibrated)

$ 502.02

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0.35ct Light Greenish Blue Aquamarine, Round, VVS-VS

5 mm (calibrated)

$ 58.80

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0.07ct Blue Diamond, Round, VS

2.7 mm (calibrated)

$ 94.27

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7.66ct Light Greenish Blue Larimar, Round, Opaque

13 mm (calibrated)

$ 118.60

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0.53ct Intense Navy Blue Kyanite, Round, SI

5 mm (calibrated)

$ 15.90

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0.22ct Pale Blue Aquamarine, Round, VS

4.3 mm

$ 36.96

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0.68ct Dark Blue Sapphire, Round, VVS

5.2 mm

$ 487.69

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0.39ct Light Blue Kyanite, Round, SI

4 mm (calibrated)

$ 11.70

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0.69ctw Baby Blue Zircon, Round, VS

4 mm (calibrated)

$ 21.86

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0.41ct Navy Blue Kyanite, Round, VS-SI

4.3 mm

$ 8.97

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0.34ct Dark Blue Kyanite, Round, SI

4 mm (calibrated)

$ 10.20

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0.97ct Deep Blue Kyanite, Round, SI

6 mm (calibrated)

$ 29.10

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4.46ct Navy Blue Star Sapphire, Round, Opaque

9.5 mm (calibrated)

$ 117.74

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0.54ct Dark Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 438.26

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0.67ct Twilight Blue Sapphire, Round, VS

5.5 mm (calibrated)

$ 543.79

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0.50ctw Navy Blue Kyanite, Round, VS

3.8 mm

$ 12.50

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1.22ctw Navy Blue Sapphire, Round, VS

5 mm (calibrated)

$ 644.16

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0.85ct Medium Dark Blue Kyanite, Round, SI

6 mm (calibrated)

$ 25.50

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0.71ct Deep Azure Blue Kyanite, Round, SI

5 mm (calibrated)

$ 21.30

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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

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 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

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025
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