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POL – BELLATAIRE

In late 1999, the Lazar Kaplan company announced a new process for "decolorizing" diamonds, meaning that brown diamonds become colorless. The company claimed the process was undetectable and permanent, and...

The multi-colored family of Garnet

The garnet family is notable for its wide variety of colors and a very broad spectrum of gemological data, including structure, density, and refractive index. There are several types of...

The Invaluable Worth of Burmese Sapphires

Burmese sapphires rank among the world’s most coveted gemstones. Their deep royal-blue hue, rarity, and rich history make them a prized choice for collectors and investors alike. Yet their beauty...

Opal and the phenomenon of opalization

Opal is one of the most intriguing and enchanting gemstones the earth has to offer. With its unique play of color and mysterious appearance, it has fascinated jewelers, collectors, and...