This Belle Epoque antique emerald and diamond European tiara ring would be a unique and highly unusual engagement ring.

circa 1900

Marked with 585 gold standard (14K) .

Rose gold, a pear shaped emerald of good color (approximately 0.70 ct), old cut diamonds (approximate combined weight 0.40 ct)

Height – 15 mm (9/16 in.)

US ring size 7 1/2 (18 mm)