Edwardian Aquamarine Pendant in Platinum & Yellow Gold.  This dazzling Edwardian pendant contains and amazing 7.32 carat oval cut aquamarine with small pearl and diamond accents set in 14 karat yellow gold and platinum. The beautiful aqua is prong set in yellow gold below the pearl, and the diamond which is set in platinum. Add this to your favorite medium length chain and you’ve got an amazing vintage gemstone necklace!