Carbuncle (gemstone) Carbuncle (gemstone) A carbuncle is any red gemstone, most often a red garnet. The word occurs in four places in many English translations of the Bible. The English King James translation is a rendering of the Hebrew Masoretic text (Old Testament) and Greek Textus Receptus (New Testament). "Carbunculus" is a word used in Latin for a small coal (or charcoal), and also for any of a number of precious or semi-precious stones, especially those of a red color.; Jerome apparently chose the term because of its similarity in meaning to the Septuagint's ἄνθραξ ("anthrax" meaning "coal"), which was in turn
Prong setting Prong setting "Merged content from Tiffany mount to here. See ." Prong setting or prong mount refers to the use of metal projections or tines, called "prongs", to secure a gemstone to a piece of jewelry. A prong setting is one component of what is known to jewelers as a "head", a claw-shaped type of binding (typically 3, 4, or 6 individual prongs per head) that is welded or soldered to a jewelry item in order to mount (or "set") a gemstone to the jewelry item. A common setting for diamond engagement rings, the prong setting allows light to strike