An early 20th century diamond jewel on a cultured pearl necklace The openwork circlet, millegrain-set throughout with old brilliant-cut and cushion-shaped diamonds, to a later double-strand necklace of 6.0-6.7mm cultured pearls, principal diamonds approx. 0.80 carat, remaining diamonds approx. 3.95 carat total, lengths: jewel 3.3cm, necklace 35.3cm