An Edwardian Platinum Topped Gold, Natural Pearl, Diamond and Demantoid Pendant/Brooch, Marcus & Co., the baroque blister pearl measuring approximately 17.24 x 12.82 mm, accented with a yellow gold caterpillar at the base containing 23 round mixed cut demantoid garnets, the stem and three leaves containing numerous old mine cut diamonds weighing approximately 2.15 carats total.Stamp: MARCUS&CO.Accompanied by a Gemological Institute of America natural pearl identification and origin certificate number 5171111811, dated May 7, 2015, stated Conclusion: Natural Blister Pearl, Environment: Saltwater, Mollusk: Pinctada maxima, Treatment: Worked base. 12.30 dwts.