Wishlist Product Carlo Weingrill - 1970s 18 karat bi-color gold tubogas necklace. Art Deco Diamond Platinum Tank Ring Dramatic Victorian grand tour banded agate bracelet. Antique early 20th century opal bead and pearl necklace A pair of 19th century opal and diamond cluster earrings. Silver over gold A 19th century 18 karat rose brooch set with an approx. 5ct blue zircon surrounded by 269 antique, old, table and rose cut diamonds, approximately 5ct in total.