This is an estate platinum emerald and diamond ring. Set in the center is a Russian 2.12ct emerald with 2 trillion set diamonds on either side and round diamonds under the gallery, 1.12ctw, color GHI and clarity VS. The emerald has a GIA Origin report. Emeralds have been a precious gemstone for centuries, and Russian emeralds are some of the best in the world. Today, Russian gem-quality emeralds are rare. Moreover, antique jewelry with Russian emeralds are very rare.