11.69 Antique Edwardian Tiffany & Co Heart Brooch/Pendant

This antique Edwardian diamond heart brooch/pendant from Tiffany and Company holds 11.69 carats of diamonds in old European and single cuts, set in platinum over 18 karat yellow gold.

Old European cuts feature smaller tables and larger culets than modern brilliants, creating a softer, more romantic sparkle with distinct flashes of light, while single cuts are simplified versions with fewer facets.

The diamonds range from F to H in color, meaning they span from colorless to near-colorless with the H stones showing only slight warmth when compared directly to higher grades. Clarity ranges from VVS2 to SI1—VVS2 diamonds are nearly flawless under magnification, while SI1 stones may show minor inclusions visible under close inspection.

The heart-shaped centerpiece is framed by a floral filigree border, and the piece converts between brooch and pendant wear. The platinum-over-gold construction provides a bright white surface while maintaining the structural benefits of yellow gold underneath. 

A truly stunning and timeless piece from the early Tiffany & Co days.