Feb
11
The Beauty and Rarity of Cobalt Spinels – A Treasure from Sri Lanka
Cobalt spinel is one of the rare and most mesmerizing gemstones found in nature. Known for its intense blue hue, this gemstone stands out among the spinel family due to its vivid color and high transparency. Unlike traditional blue spinels that often carry greyish or dark tones, true cobalt spinels possess a bright, vibrant blue […]