This certified vintage brooch is an exceptional piece of Chinese export craftsmanship, featuring intricate silver filigree work and vivid enamel butterflies that surround a large natural amethyst center stone. The gemstone, verified by the Gem and Jewelry Institute of Thailand (GIT), is a natural quartz variety (amethyst) with no indication of clarity enhancement. The brooch offers triple functionality: it can be worn as a brooch, used as a pendant through the concealed loop, or styled as a traditional obi clip. A hallmark stamped "SILVER" is visible on the back, typical of early to mid-20th century Chinese export silverwork. GIT Gem Report Details: ? Species/Group: Natural Quartz ? Variety: Amethyst ? Treatment(s): No indications of clarity enhancement ? Weight: 19.96 g (total weight of the mounted piece) ? Shape: Oval ? Cut: Fancy ? Color: Purple ? Report No: G A44257 ? Date: May 30, 2025 Measurements (approx.): ? Brooch dimensions: 4 cm x 3.5 cm ? Stone Dimensions: 20.9 mm x 17.2 mm ? Total weight: 19.96 g. Condition:Good vintage condition with signs of age and patina. The amethyst is securely set with excellent brilliance. Closure Type: ? Hinged pin with C-clasp ? Pendant loop ? Obi clip arms