Natural Blue Cobalt Spinel 2.13 ct – Cushion Cut, Untreated, GFCO Certified investment-gold ideal for avant-garde or architectural

ideal for avant-garde or architectural jewelry pieces

65 carat natural amethyst showcases a richly saturated purple color and a classic cushion cut that enhances depth and brilliance

making it a desirable choice for jewelry connoisseurs and collectors alike

Natural Tanzanite from Tanzania weighing 4

Natural Blue Cobalt Spinel 2.13 ct – Cushion Cut, Untreated, GFCO Certified investment-gold ideal for avant-garde or architecturalThis natural blue cobalt spinel weighs 2. 13 carats and displays a vivid blue color with exceptional saturation and attractive brilliance. The gemstone is expertly fashioned in a cushion cut measuring 7. 92 6. 22 5. 39 mm, creating elegant proportions and lively light reflection that enhance its rich cobalt blue appearance. Cobalt spinel is among the rarest and most desirable spinel varieties, highly valued for its intense electric blue coloration and