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Home Gemstones Chalcedony
20.57 ct Blue Chalcedony Gemstone, Chalcedony Gem in Round Cabochon Shape for Sale.
Photos are of Actual Product for Sale
20.57 ct Blue Chalcedony Stone, Natural Chalcedony in Round Cabochon Shape for Sale Chalcedony Gemstone in 20.9 mm Size for Sale, Chalcedony Stone in Lavender Blue Color

20.57ct Natural Blue Chalcedony, Transparent, 20.94 mm

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Product ID: 305506
Type: Chalcedony
Weight: 20.57 ct 1 gem
Size: mm calibrated
Size: 20.9 mm
Exact Size: 20.94 x 6.53 mm
Diameter x Depth
Shape: Round Cabochon
Color: Lavender Blue
Clarity: Transparent/Translucent
Treatment: Untreated
Origin: Brazil
Content: 1 pc
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Product Description

This is a 20.57 carat natural lavender blue Chalcedony gem, 1 pc in round shape with an exact size of 20.94 mm x 6.53 mm . This loose Chalcedony gemstone was mined in Brazil and its clarity is Transparent/Translucent. No treatment has been applied on this natural Chalcedony stone

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Overall Rating -> 9 star ratings

Fast snd easy to find what I was looking for

Posted By Bawb in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Although the stones are smaller than I thought, I really don't think in millimeters, they are perfect. I plan to put one into a ring and the other into a necklace. Ordering was easy, contact kept me aware of how shipping was going, and delivery was sooner than expected. The quality of stones I have ordered in the past and this recent order is outstanding and stones I will be proud to wear.

Posted By Ktreva52 in June, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love Gem Select. I always know the quality and accuracy of information and photos are top notch. Highly recommend!

Posted By Matthew K. in May, 2026
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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

Overall Rating -> 10 star ratings

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Good prices

Posted By TRM in October, 2025
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