Check the listing for details. Premium Shell Fossil! 8.7ct Light Opal Multicolor Opalized Bivalve Coober Pedy. Color: Multicolor, Condition: New. Listed at 749.99 USD. Collectors 8.7ct Opal Shell Fossil Red Multicolor Coober Pedy AU Video will open in a new window Using the mobile app? Copy this link into your browser: Please view video: https://youtu.be/5fd5JpccHDE For your consideration is a premium opalized fossil bivalve shell from Coober Pedy, Australia. This one features very bright (3.5/5) non-directional red multicolors throughout. Lightly polished to show the colors, but retains the natural shape of the fossil. This fine specimen weighs 8.7 carats. It measures 23mm long by 11mm wide by 8mm thick. No cracks or crazing, just a few miniscule clay spots. Ideal for a fossil collection or pendant. As ever, this is an untreated and 100% ALL-Natural gemstone.