Tiffany & Co. 18k white and yellow gold "En Tremblant" hinged petal style diamond brooch/pendant containing one hundred sixty-eight (168) pave set round brilliant cut diamonds, measuring 2.30 - 1.40 x 1.11mm (depth estimate) with approximate total weight of 3.88ct. (VS clarity; F-G color). The mounting has a pin mechanism and hidden bail for vertical suspension. Pin mechanism is marked Tiffany & Co. 2-1/8" x 1-5/8". 26.7 grams. (Additional high-resolution photos are available at www.caseantiques.com.)