18 karat yellow gold ring, featuring a 8.90ct solid natural Queensland boulder opal surrounded by diamonds 0.48ct, sapphires 0.42ct, yellow sapphires 2.14cts, pink sapphires 2.57cts, purple sapphires 0.69ct, tanzanite 0.34ct, tsavorites 4.19cts and pink tourmaline 0.27ct.