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Home Gemstones Opal
16.51 ct Green Opal Gemstone, Opal Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
16.51 ct Green Opal Stone, Natural Opal in Oval Cabochon Shape for Sale Opal Gemstone in 19.6 x 16.1 mm Size for Sale, Opal Stone in Earth Green Color

16.51ct Natural Green Opal, Oval Cut, 19.6x16.1 mm

9.7 out of 10
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Product ID: 675198
Type: Opal
Weight: 16.51 ct 1 gem
Size: mm calibrated
Size: 19.6 x 16.1 x 9 mm
Exact Size: 19.55 x 16.14 x 8.98 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Earth Green
Clarity: Opaque
Treatment: Untreated
Origin: Brazil
Content: 1 pc
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Product Description

This is a 16.51 carat natural earth green Opal gem, 1 pc in oval shape with an exact size of 19.55 x 16.14 x 8.98 mm. This loose Opal gemstone was mined in Brazil and its clarity is Opaque. No treatment has been applied on this natural Opal stone

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GemSelect Certified Store Reviews

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Overall Rating -> 9 star ratings

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a rock that met my need. Bought it!

Posted By Skot in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to use website

Posted By Mel in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate

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
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