Luminous gemstones - Wikipedia
The OED defines pyrope (from Greek Πυρωπός, lit. "fire-eyed")" as: "In early use applied vaguely to a red or fiery gem, as ruby or carbuncle; (mineralogy) the Bohemian garnet or fire-garnet"; and carbuncle or carbuncle-stone (from Latin "carbunculus," "small glowing ember") as: "A name variously applied to precious stones of a red or,Peridot Gemstone | Peridot Stone – GIA,Peridot is an ancient Gem of the mineral Olivine. Its chemical composition includes iron and magnesium, and iron is the cause of its attractive yellowish green colors., Colored Stone Grading Lab Class, Some gemstones have synthetic counterparts that have essentially the same chemical, physical, and optical properties, but are grown by man,Engraved gem - Wikipedia,An engraved gem, frequently referred to as an intaglio, is a small and usually semi-precious gemstone that has been carved, in the Western tradition normally with images or inscriptions only on one face. The engraving of gemstones was a major luxury art form in the Ancient world, and an important one in some later periods.. Strictly speaking, engraving means carving in intaglio (with the,A Guide to Gem Cutting Styles - International Gem Society,When the GemCad program was released in the 1980s, people were able to test their gem cutting designs on a computer before taking a stone to a lap. This made it easy for people to create new cuts. This made it easy for people to create new cuts.Buy Natural Gemstone Online At Best Price, Gemstone Ring,,A gemstone (also called a gem, fine gem, jewel, precious stone, or semi-precious stone) is a piece of mineral crystal which, in cut and polished form, is used for astrology and jewelry making. There are many gemstones available worldwide.Ruby Symbolism and Legends - International Gem Society,Before the development of scientific classifications of gem species, many people considered all red gemstones to be the same type of stone). Historically, blood-red cabochons were called “carbuncles” and encompassed gems gemologists would now distinguish as rubies, garnets , spinels , etc.
