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13.83 ct Green Opal Gemstone, Opal Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
13.83 ct Green Opal Stone, Natural Opal in Oval Cabochon Shape for Sale Opal Gemstone in 18 x 13.8 mm Size for Sale, Opal Stone in Warm Green Color

13.83ct Natural Green Opal, Oval Cut, 18x13.8 mm

9.7 out of 10
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Product ID: 674959
Type: Opal
Weight: 13.83 ct 1 gem
Size: mm calibrated
Size: 18 x 13.8 x 9.6 mm
Exact Size: 17.95 x 13.83 x 9.58 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Warm Green
Clarity: Opaque
Treatment: Untreated
Origin: Brazil
Content: 1 pc
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Product Description

This is a 13.83 carat natural warm green Opal gem, 1 pc in oval shape with an exact size of 17.95 x 13.83 x 9.58 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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Overall Rating -> 10 star ratings

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.

Posted By Atsu in December, 2025
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Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 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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Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
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Overall Rating -> 10 star ratings

Found a rock that met my need. Bought it!

Posted By Skot in May, 2026
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