This 18-karat yellow gold sea urchin sizeable and weighty. In fact, a double-pronged hinged pin stem is utilized to help support it when worn. The top spiked portion of the urchin has a matte finish The back of this brooch is high-polished and is fitted with a double pronged pin stem. Stamped near the pin stem is "Tiffany & Co. 18k" . A single flower is off set on the urchin. Six rubies that have a total weight of 0.40 carat are set as the petals of this flower. Set in the center of the flower is a round brilliant diamond that weighs approximately .15 carat. This piece measures 1¼ inch around.

Read a little about figural jewelry in the blog "Signature Series – Volume 17" by Joden Girl