A pair of African sapphires, 7.425 carats

Technical details: Type: Ruby Weight: 7.425 carats Dimensions (mm): 10.47x8.12x3.95 (average) Shape: Oval Color: Red Clarity: Eye-clean Transparency: Transparent Hardness: 9.0 Treatment: Glass Filled Origin: Africa Certification: Certification from Saudi Laboratory (MT) - Website (www.mtgl.com.sa) Ruby is a gemstone belonging to the corundum mineral group, known for its distinctive red color ranging from pinkish-red to dark red, due to the presence of chromium in its composition. Ruby is considered one of the hardest gemstones after diamond. Ruby often forms in metamorphic or igneous rocks rich in aluminum.