Antique Silver, Gold, Natural Gray Pearl and Diamond Pendant with Gold Chain. Photo Doyle

18 kt., the modified drop-shaped mounting centering one iridescent gray drop-shaped pearl approximately 13.0 x 10.5 x 9.8 mm., set with 15 old-mine cut diamonds approximately 2.35 cts., accented by numerous small old-mine and rose-cut diamonds, with gold chain. Length 26 inches. Victorian or Victorian style. Good condition. 1 3/4 x 3/4". Sold for $12,500

With The Gem and Pearl Laboratory report no. 05121 stating that the pearl is natural, saltwater, no evidence of treatment. 

Pearl: iridescent gray, with pink and green hues, cleanish, round in back, good luster. 

Diamonds: I-J-K-L, one O-P-VS-mostly SI, lumpy cuts. 

Doyle New York. Wednesday, October 17, 2012. www.doylenewyork.com