Vintage Tiffany & Co. 18K Aventurine Insect Brooch

Vintage Tiffany & Co. 18K yellow gold brooch, featuring a flying insect motif with hand carved aventurine quartz body, rope design bezel, wings and antennas. Solid gold back with pin attached.
Measurements:
Height: 40 mm
Width: 44 mm
Depth: 15 mm (including pin)
Weight: 15.8 grams
Marked: TIFFANY & CO 18K ITALY