cobalt spinel
Top rated products
3.08 ct Tanzanian Spinel – Cushion Brilliant, Midnight‑Blue | Rare & Untreated Gemstone
$465.00• Weight: 3.08 ct
• Size: ~8.1 × 7.4 × 6.1 mm
• Cut: Cushion Brilliant
• Color: Midnight‑Blue
• Origin: Mahenge, Tanzania
• 100 % Natural & Untreated
6.37 ct Cobalt-Blue Spinel – Natural Tanzanian Cushion Brilliant
$28,665.00Total weight 6.37 ct
Size 11 × 9.1 × 7.2 mm
Shape Rectangular cushion brilliant
Colour Neon cobalt blue
Origin Tanzania (Mahenge)
Treatment None – completely natural