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18.57 ct Blue Chalcedony Gemstone, Chalcedony Gem in Cushion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
18.57 ct Blue Chalcedony Stone, Natural Chalcedony in Cushion Cabochon Shape for Sale Chalcedony Gemstone in 26.4 x 14.7 mm Size for Sale, Chalcedony Stone in Violet Blue Color

18.57ct Violet Blue Chalcedony, Cushion Cut, 26.4x14.7 mm

9.6 out of 10
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Product ID: 694000
Type: Chalcedony
Weight: 18.57 ct 1 gem
Size: mm calibrated
Size: 26.4 x 14.7 x 5.2 mm
Exact Size: 26.42 x 14.72 x 5.20 mm
Length x Width x Depth
Shape: Cushion Cabochon
Color: Violet Blue
Clarity: Opaque
Treatment: Untreated
Origin: Brazil
Content: 1 pc
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Product Description

This is a 18.57 carat natural violet blue Chalcedony gem, 1 pc in cushion shape with an exact size of 26.42 x 14.72 x 5.20 mm. This loose Chalcedony gemstone was mined in Brazil and its clarity is Opaque. No treatment has been applied on this natural Chalcedony stone

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Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

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I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
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My experience was done with ease

Posted By Barb in October, 2025
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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

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
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Overall Rating -> 10 star ratings

It was good. There was a large selection at prices I could afford.

Posted By Zorah in February, 2026
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