FRENCH DIAMOND & 18k GOLD PIN EN TREMBLANT

Designed as a rose with five articulating gold mesh petals surrounding 16 trembling .25 ct round brilliant diamond "pistils" mounted on graduated gold stalks; the petals linked to a rod mechanism that opens and closes the flower by moving the lower leaves which are mounted with an additional round full cut diamond; 2-1/4 in., 21.4g; marked "Made In France / 18k" with no apparent makers mark