These 14K White Gold Oval Blue Topaz and Diamond Stud Earrings are Magnificient! Topaz served as a symbol of strength among the Greeks. Europeans at the time of the Renaissance bevies in its power to destroy curses and dispel anger. These earring are very unique in that they are not perfectly oval or pear but have been perfectly matched by the gemstone cutter. The blue topaz weight over 4 carats total weight. The blue topaz gems measure 10 x 7 millimeters and is an organic bean shape and so unique!