A stunning Belle Epoque diamond drop necklace, yellow gold with silver setting to diamonds, circa 1850, beautifully and intricately presented as an elaborate drop style necklace with central large diamond panel featuring floral cluster, staggered drops and a swirled frame supporting, detachable with original mechanism, connecting to a triple swag necklace of diamonds, connecting to smaller diamond panels, merging to a final length of diamonds, fitted with concealed bail to anchor side point,.