Cobalt Spinel - An Phú, Vietnam

Two oval-cut Cobalt Spinels from An Phú, Vietnam, each with its own distinctive shade of cobalt blue. Rather than being cut as a matched pair, these stones highlight the individuality and variation that makes natural spinel so appealing. Collectors often value these differences, as they reflect the unique growth and chemistry of each crystal.

Cobalt spinel is among the rarest spinel colors, its vivid blue caused by trace amounts of cobalt. The An Phú deposit in Vietnam has emerged as one of the world’s premier sources, producing material that rivals or surpasses other historic localities.

Photography is done with a 10x macro lens, so you may see details not visible to the unaided eye.
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