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Home Gemstones Opal
13.04 ct Black Opal Gemstone, Opal Gem in Marquise Cabochon Shape for Sale.
Photos are of Actual Product for Sale
13.04 ct Black Opal Stone, Natural Opal in Marquise Cabochon Shape for Sale Opal Gemstone in 29.8 x 13.9 mm Size for Sale, Opal Stone in Black Color

13.04ct Natural Black Opal, Marquise, 29.8x13.9 mm

9.7 out of 10
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Product ID: 664567
Type: Opal
Weight: 13.04 ct 1 gem
Size: mm calibrated
Size: 29.8 x 13.9 x 7.3 mm
Exact Size: 29.79 x 13.90 x 7.30 mm
Length x Width x Depth
Shape: Marquise Cabochon
Color: Black
Clarity: Opaque
Treatment: Smoked
Origin: Ethiopia
Content: 1 pc
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Product Description

This is a 13.04 carat natural black Opal gem, 1 pc in marquise shape with an exact size of 29.79 x 13.90 x 7.30 mm. This loose Opal gemstone was mined in Ethiopia and its clarity is Opaque.

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Overall Rating -> 10 star ratings

I purchased 4 gemstones in different sizes to be able to make a family ring for my granddaughter. I got exactly what I saw and they are absolutely beautiful! Shipping was quick compared to other gem stores I have dealt with! I will definitely order more stones from your company, as I am a collector and have several stones. You are my new go to company in the future

Posted By Liz in June, 2026
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
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Overall Rating -> 10 star ratings

I start use it more amd more and love it

Posted By Ben danino in August, 2026
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Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 2026
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Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

My experience was done with ease

Posted By Barb in October, 2025
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