Monica RamiMay 24, 20213 minPrecious and Semi Precious Gemstones: Myth and RealityThe idea that some gemstones are precious and others are only semi-precious is familiar to every buyer of colored stones. Precious stones...
Monica RamiMay 23, 20211 minFamous Semi-Precious StonesThere are few semiprecious gemstones so beautiful that they have gained world renown. The Flame Queen opal was unearthed in 1914 by Jack...