Platinum and 18k Gold Ruby and Diamond Brooch

Article
1231943Location
California, United StatesFull address: Available with subscription
Date
September 24, 2026 - September 25, 2026Lot Number
Available with subscriptionCategory
BroochBrand
Tiffany & Co.Year of Production
Circa 1925Dimensions
1 1/2 x 5/8 inMaterial
18k Gold, PlatinumGross Weight
8.70 gStone Weight
Ruby 2.37 ct, Diamond 2.15 ctClarity
VSDiamond Color
F-IClasp Or Buckle
Pin BackGemstone
Ruby, DiamondGender
WomenDescription
Tiffany & Co. circa 1925 platinum brooch centering a cushion-shaped double cabochon star ruby weighing 2.37 ct, set throughout with old European and single-cut diamonds totaling 2.15 ct of F-I color and VS clarity; the red ruby measures 8.0 x 6.4 x 4.7 mm, is moderately to heavily included and displays weak asterism. GIA Ruby Origin Report 5151069501 dated December 3, 2012 states the ruby is natural corundum of Star Ruby variety, Burmese (Myanmar) origin, with no indications of heating (NTE); partially signed Tiffany & Co., measures 1 1/2 x 5/8 in, gross weight 8.70 g; metal stamped and tested with XRF for platinum, pin back tested for 18k gold.Condition
Available with subscriptionProvenance
No provenance providedEstimates: $8,000 – $12,000
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