Cobalt Spinel
Cobalt Spinel
Cobalt Spinel is a rare and mesmerizing gemstone celebrated for its vivid, electric blue hue. This captivating coloration is primarily due to trace amounts of cobalt within the spinel’s crystal structure, resulting in a neon-like blue that rivals the finest sapphires. The gemstone’s intense color, combined with its brilliance and durability, makes it a prized possession among collectors and jewelry enthusiasts alike.
Variety and Category
- Mineral Family: Spinel Group
- Chemical Formula: MgAl₂O₄ (magnesium aluminum oxide)
- Crystal System: Cubic
- Mohs Hardness: 7.5–8.0
Spinel crystallizes in the isometric system, often forming octahedral crystals. Its robust structure contributes to its excellent durability, making it suitable for various types of jewelry.
Color and Value
The defining feature of Cobalt Spinel is its vibrant blue color, ranging from deep royal blue to bright neon blue. This intense coloration is due to the presence of cobalt ions within the crystal lattice. The color intensity, clarity, and size decide the value of Cobalt Spinel. High-quality specimens exhibiting a vivid blue hue with minimal inclusions command premium prices in the market. For instance, a 1.22-carat loupe-clean Cobalt Spinel from Sri Lanka showcases the gemstone’s desirable qualities.
Common Cuts and Applications
To maximize their brilliance and color, Cobalt Spinels are typically faceted into shapes such as oval, cushion, and round cuts. Their exceptional hardness and vibrant colors make them ideal for various types of jewelry, including rings, necklaces, earrings, and bracelets. Cobalt Spinel’s unique hue and durability also make it a popular choice for statement pieces and engagement rings.
Sri Lankan Uniqueness
Sri Lanka is renowned for producing some of the finest Cobalt Spinel gemstones, characterized by their exceptional clarity and vibrant colors. The country’s gem-rich regions, particularly around Ratnapura, have yielded Cobalt Spinels that display a rich array of hues, including vivid blues. Sri Lankan Cobalt Spinels are celebrated for their superior quality and are highly sought after in the global gemstone market. For example, a 1.73-carat Cobalt Spinel from Ceylon exhibits a radiant cut that enhances its vibrant color, making it a remarkable find in the realm of rare stones.
At Luxiris Gems (PVT) Ltd., we take immense pride in offering authentic Sri Lankan Cobalt Spinels, each meticulously selected for its exceptional beauty and quality. Our commitment to ethical sourcing and excellence ensures that our clients receive gemstones that are not only stunning but also steeped in the rich heritage of Sri Lanka’s gemological legacy. Contact us to find your unique stone.
