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Home Gemstones Spinel
13.20 ctw Black Spinel Gemstones, Spinel Gems in Round Rose-Cut Shape for Sale.
Photos are of Actual Products for Sale
13.20 ctw Black Spinel Stones, Natural Spinel in Round Rose-Cut Shape for Sale Spinel Gemstones in 12 mm (calibrated) Size for Sale, Spinel Stones in Black Color

13.20ct Natural Black Spinel, Round Cut, 12.03 mm

9.7 out of 10
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Product ID: 384490
Type: Spinel
Weight: 13.20 ct (total) 2 gems
avg. 6.60 ct
Size: 12 mm calibrated
Size: 12 mm
Exact Size: 12.03 x 4.67 mm
Diameter x Depth
Shape: Round Rose-Cut
Color: Black
Clarity: Opaque
Treatment: Untreated
Origin: Thailand
Content: 2 pcs
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Product Description

These are 13.20 carat natural black Spinel gems, 2 pcs in round shape with an exact size of 12.03 mm x 4.67 mm (avg.). These loose Spinel gemstones were mined in Thailand and their clarity is Opaque. No treatment has been applied on these natural Spinel stones

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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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Posted By VH-1 in July, 2025
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I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

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

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
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Love how easy the site is to use. Really love that the pictures are of actual product.

Posted By LeAnn in January, 2026
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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
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