Brooches Jewels : Circa 1930’s Tri-Color Diamond,Ruby & Emerald Flower Brooch. Platinum, 18kt. … 7 June 2018 3144 Brooches Jewels : Circa 1930’s Tri-Color Diamond,Ruby & Emerald Flower Brooch. Platinum, 18kt. Yellow & Pink Gold Diamond, Ruby & Emerald Flower Brooch. Via 1stdibs.