Gorgeous 18K White Gold Cabochon Topaz Peridot Citrine Diamond Wobble Ring Band. This beautiful piece features a large natural cabochon blue topaz, citrine, and peridot, each measuring about 6 mm in diameter, surrounded by numerous brilliant round diamonds totaling 0.25 carats. The top of the ring measures 7/8 of an inch across. The ring is a size 6.5. Sizing is available for an additional fee. It weighs 9.9 grams.