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20 mm Round Gemstones: Topaz, Opals, Garnets, Sapphires, Rubies, Calibrated 20 mm Round Gems

20 mm Round Gemstones Weight
20 mm Round Gemstones Size
20 mm Round Gemstones Clarity
20 mm Round Gemstones Price

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ID: 618052
Weight: 26.25ct (total)
Size: 20 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 69.30
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ID: 645796
Weight: 17.64ct
Size: 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.95
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ID: 716435
Weight: 25.41ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 243.94
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ID: 693090
Weight: 26.02ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 218.57
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ID: 692708
Weight: 26.75ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 224.70
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ID: 618053
Weight: 23.17ct (total)
Size: 20 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 61.16
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ID: 483845
Weight: 24.31ct
Size: 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 35.62
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ID: 692701
Weight: 25.66ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 215.54
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ID: 491712
Weight: 66.33ct (total)
Size: 20 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 77.92
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ID: 693087
Weight: 24.55ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 206.22
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Why Buy 20 Mm Round Gemstones from GemSelect?

FAQs

What types of gemstones are available in 20 mm round sizes?

We offer a wide variety of 20 mm round gemstones, including Diamonds, Sapphires, Rubies, Emeralds, Amethysts, Topaz, Opals, Aquamarines, Citrines, and Garnets. Each stone is carefully calibrated for consistent sizing and quality.

Are 20 mm round gemstones suitable for jewelry making?

Yes, 20 mm round gemstones are perfect for jewelry making. Their size and shape make them ideal for rings, pendants, earrings, and bracelets. They are also commonly used in halo or pavé settings for added brilliance.

What is a calibrated 20 mm round gemstone?

A calibrated 20 mm round gemstone is pre-cut to a specific size (20 mm in diameter) to ensure uniformity. This makes them easier to set into jewelry designs and ensures a consistent look across multiple pieces.

Can I find 20 mm round gemstones in a brilliant cut?

Absolutely! Many of our 20 mm round gemstones, including Diamonds, Sapphires, and Rubies, are available in a brilliant round cut. This cut maximizes the stone's sparkle and light reflection.

Are 20 mm round gemstones available in both precious and semi-precious varieties?

Yes, our collection includes both precious gemstones like Diamonds, Sapphires, Rubies, and Emeralds, as well as semi-precious stones such as Amethysts, Topaz, Opals, Aquamarines, Citrines, and Garnets.

How do I care for jewelry made with 20 mm round gemstones?

To maintain the beauty of your 20 mm round gemstones, clean them regularly with a soft cloth and mild soapy water. Avoid exposing them to harsh chemicals or extreme temperatures. Store them separately to prevent scratches.

Can 20 mm round gemstones be customized for specific designs?

Yes, our 20 mm round gemstones can be customized to fit your unique jewelry designs. Whether you need a specific type of stone or a particular setting, we can help you create the perfect piece.

Are 20 mm round gemstones a good choice for statement jewelry?

Absolutely! The size and brilliance of 20 mm round gemstones make them an excellent choice for creating bold, eye-catching statement pieces like cocktail rings, pendants, or earrings.

Do you offer certifications for 20 mm round gemstones?

Yes, many of our 20 mm round gemstones come with certifications from reputable gemological laboratories, ensuring their quality and authenticity.

Where can I buy 20 mm round gemstones?

You can purchase our 20 mm round gemstones directly from our online store. We offer a wide selection of calibrated stones, including Diamonds, Sapphires, Rubies, Emeralds, and more, all cut to perfection for your jewelry 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

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

If you have motion picture, then I will be more satisfied with.

Posted By Ray in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

love these guys been ordering since 2000 maybe

Posted By JHT in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I feel Gemselect is a trustworthy company to buy from

Posted By Becky in October, 2025
Source: Bizrate
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