A star ruby gemstone, 1.52 carats

Technical details: Type: Star Ruby Weight: 1.526 carats Dimensions (mm): 7.07x5.97x3.45 Shape: Cabochon Color: Pink Clarity: Eye-clean Transparency: Transparent Hardness: 9.0 Treatment: Untreated Origin: Unknown Certification: Certificate from Saudi Laboratory (MT) - Website (www.mtgl.com.sa) The Star Ruby is a rare type of ruby that shows a unique optical phenomenon known as "asterism." This phenomenon appears as a bright star with six rays that appear and move on the polished surface of the cabochon-shaped stone when light falls on it. This effect is attributed to the presence of fine needle-like inclusions of rutile arranged crosswise inside the ruby crystal. The star ruby features the usual red color of ruby with this bright star.