Questions & Answers
Our trusted network of 1stDibs sellers answer common questions
What is cobalt spinel?
1 Answer
Cobalt blue spinels are the rarest and most valued type of spinel gemstone. They’re very popular in the modern gem industry and sought after by collectors. On 1stDibs, you’ll find a collection of cobalt spinel jewelry from some of the world’s top sellers.
1stDibs ExpertApril 5, 2022
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Shop for Cobalt Spinel on 1stDibs
Certified Cobalt Spinel 1.53 Carats Natural Gemstone
Located in Brisbane, AU
Natural Cobalt Spinel
Weight: 1.53 Carats
Dimension: 7.00 x 6.47 x 4.72 Mm
Shape: Oval
Origin: Tanzania
Treatment: None
Certificate: AIG Certified
Category
2010s Tanzanian Arts and Crafts Loose Gemstones
Materials
Spinel
1.98 Carat Natural Blue Cobalt Spinel from Burma
Located in Hua Hin, TH
1.98 Carat Natural Blue Cobalt Spinel from Burma
Dimension: 7.68 x 6.35 x 5.28 mm
Shape: Oval Cut
Weight: 1.98 Carat
No Heat
GIL Certified Report No: St02022102151324
Category
2010s Burmese Loose Gemstones
Materials
Spinel
AIG Certified 1.32 Carat Natural Loose Cobalt Spinel From Tanzania
Located in Peshawar, PK
Spinels, including cobalt spinel, are relatively hard gemstones, scoring 7.5 to 8 on the Mohs scale of hardness.
Category
21st Century and Contemporary Tanzanian Arts and Crafts Loose Gemstones
Materials
Spinel, Other
$800 Sale Price
20% Off
Free Shipping
AIG Certified 2.01 Carat Natural Loose Cobalt Spinel Oval Shape Gemstone
Located in Peshawar, PK
Spinels, including cobalt spinel, are relatively hard gemstones, scoring 7.5 to 8 on the Mohs scale of hardness.
Category
21st Century and Contemporary Tanzanian Arts and Crafts Loose Gemstones
Materials
Spinel, Other
$712 Sale Price
20% Off
Free Shipping
AIG Certified 1.53 Carat Natural Loose Cobalt Spinel Gemstone From Tanzania
Located in Peshawar, PK
Spinels, including cobalt spinel, are relatively hard gemstones, scoring 7.5 to 8 on the Mohs scale of hardness.
Category
21st Century and Contemporary Tanzanian Arts and Crafts Loose Gemstones
Materials
Spinel, Other
$960 Sale Price
20% Off
Free Shipping
GFCO Certified 2.17 Carat Natural Loose Blue Cobalt Spinel From Tanzania
Located in Peshawar, PK
Spinels, including cobalt spinel, are relatively hard gemstones, scoring 7.5 to 8 on the Mohs scale of hardness.
Category
21st Century and Contemporary Tanzanian Arts and Crafts Loose Gemstones
Materials
Spinel
$960 Sale Price
20% Off
Free Shipping