A BELLE EPOQUE COLORED DIAMOND BROOCH - Centering upon a pear-shaped yellow diamond and diamond, set within an old European and single-cut diamond openwork pierced plaque, enhanced by ribbon motifs, with a black onyx backing, mounted in platinum -
A BELLE EPOQUE GEM-SET ENAMEL BROOCH Designed as an independently-set pear-shaped cabochon opal, within an openwork old European-cut diamond surround, enhanced by green enamel paisleys, each centering upon an old European-cut diamond single-cut emerald
Belle Epoque Platinum, Gold, Conch Pearl and Diamond Lavaliere Suspending one oval conch pearl an openwork garland motif, set throughout with old European-cut diamonds, circa delicate platinum chain. Doyle New York.
A BELLE EPOQUE NATURAL PEARL AND DIAMOND PENDANT. Designed as a flat drop-shaped natural pearl weighing carats suspended from a diamond-set bow plaque mounted with a central old-cut pear-shaped diamond, to the associated fine-link neckchain, pendant circa