The detachable circular brooch pendant circa 1910, platinum, centering an old mine-cut diamond gauged at approximately 0.70 ct and graded H-I color and SI clarity, further surrounded by eight old mine-cut and 80 rose-cut diamonds totaling approximately 1.00 ct, framed by 80 square-cut natural and simulated rubies totaling approximately 3.00 cts trimmed in gold, with a later added modern 14K white gold chain necklace set with 17 full-cut round collet-set diamonds totaling approximately 1.20 cts, and graded G-H color and SI, clarity, 2'' pendant, 18'' chain, est: $6500/8500

The pendant-brooch is in overall good condition. The bail can be removed to wear as a brooch and the pin back can be removed to wear as a pendant. Rubies display strong red color and good saturation. **Few rubies synthetic**.