Natural Cobalt Spinel (GRS Certified) 5.21ct - (UH)

- STONE: Cobalt Blue Spinel

- WEIGHT: 5.39 Carats

- DIMENSIONS: 9.84x8.57x7.03 mm

- COLOR: Blue to Violet (Color Change)

- CUT: Emerald

- CLARITY:

- TREATMENT: None - Untreated

- ORIGIN: Ceylon

Discover the extraordinary allure of this GRS-certified 5.39-carat Cobalt Blue Spinel, an untreated, ethically sourced gemstone from Ceylon, showcasing a vibrant blue hue that shifts to a captivating purple under incandescent light. Expertly crafted with an emerald cut, this ultra-rare gem measures 9.84x8.57x7.03 mm, offering a mesmerizing color-change phenomenon that is exceptionally rare in spinels over 5 carats. Known as one of the rarest gemstones, second only to taffaite, this natural cobalt spinel radiates unparalleled beauty, making it a lifetime investment opportunity. Perfect for bespoke engagement rings or high-end jewelry designs set in white or rose gold, its natural, untreated brilliance and durability make it ideal for daily wear. A true treasure for jewelry enthusiasts and collectors seeking rare, high-quality cobalt blue spinels from Ceylon’s prestigious mines.