Coral stone weighing 1.368 carats

Technical details: Type: Coral Weight: 1.368 carats Dimensions (mm): 9.01x5.17x3.49 Shape: Oval Cabochon Color: Red Clarity: Not graded Transparency: Opaque Hardness: 3.0-4.0 Treatment: Untreated Origin: Unknown Certification: Certificate from Saudi Laboratory (MT) - website (www.mtgl.com.sa) Coral is classified as an organic stone and not a mineral, as it consists of calcium carbonate structures secreted by tiny marine organisms living in coral reefs. It is characterized by its bright and diverse colors such as red, pink, white, and orange, giving it a distinctive presence among natural gemstones. It is often smooth with a waxy luster after polishing. Its valuable types are extracted from warm seas, especially the Mediterranean Sea and the Pacific Ocean. The rarity of some colors, especially deep red, has made coral one of the distinguished organic stones in the world of gemstones.