Smoky quartz from Col de La Madeleine, La Lauzière Massif, Savoie, Auvergne-Rhône-Alpes, France. Comes with certificate of authenticity. Stone type: Smoky quartz. Dominant color: multicolored. Origin: France. Average weight (Carats): 145.9 carats. Dimensions (mm): 57 x 56 x 16 mm. Ref. : SKU021267. Variety of gray to brown quartz, composed of silicon dioxide (SiO2). Appreciated in jewelry for its smoky tint.
