Victorian Diamond and Cobalt Enamel Pendant Necklace
15k yellow gold, fourth quarter 19th century, English, converted from a brooch, the oval pendant with guilloche cobalt enamel and set with a central silver-top, gold-back diamond starburst set with a central old mine-cut diamond weighing approximately 0.39 carats, approximate color H and clarity SI1, the arms set with sixteen old mine-cut diamonds weighing approximately 1.15 carats in total, approximate color G-I and clarity VS2-SI2, with a beaded edge and locket back, the pin removed and now fixed to a later 14K gold rope chain. pendant h. 1-1/2", w. 1-3/4", l. 18", total weight 46 grams