Art Deco Emerald Diamond Engagement Ring Platinum Portuguese 1940s/1950s

Vintage Colombian Emerald, Diamond and Onyx Bypass Cocktail Ring in Platinum, 1990s. This jewel of Art Deco inspiration features a vivid green Colombian emerald and a Transitional ro...

Mid-Century Emerald and Diamond Three-Stone Ring in Platinum, Portuguese, circa 1950s–1960s. Crafted in mid-20th century Lisbon, this jewel is centered on a captivating old mine-cut...

A 20th Century Diamond and Emerald Target Cocktail Ring. This spectacular ring designed in a style which is iconically Art Deco features a Transitional ...

Leitão & Irmão Mid-Century Emerald and Diamond Platinum Cocktail Ring, Portugal, 1950s–1960s, in Original Case. A striking mid-century cocktail ring by Leitão & Irmão, the historic Portuguese jeweller to the Royal House, masterfully blending vivid emeralds with a scintillating diamond ensemble. The design centres on a round brilliant-cut diamond with approximately 1.20 carats, framed by a pair of square emerald-cut emeralds of deep, saturated green, weighing an estimated 2.00 carats in total. The trio is encircled by a dynamic halo of twenty marquise brilliant-cut diamonds, together weighing around 2.40 carats, their precise arrangement radiating brilliance from every angle. Exquisitely crafted in platinum and bearing the Lisbon hallmark (1938–1984) for platinum 500, as well as the maker’s mark for Leitão & Irmão, this jewel embodies the refined glamour of the 1950s–60s era — a time when bold form met impeccable craftsmanship. Presented in its original red leather fitted case, stamped “Leitão & Irmão, Antigos Joalheiros da Coroa, Lisboa”, this piece is a rare survivor of Portugal’s mid...

Treat yourself to this irresistibly stunning 5.93 carat emerald diamond platinum ring!  Crafted in platinum with the center deep green emerald of approximately 5.93 carats. The vivi...

This gorgeous engagement ring features an exquisite 1.97 carat square emerald cut Colombian emerald mounted in a four double claw, open back setting. The vibrant gemstone is beautifu...

Ring in platinum. Sublime and feminine Art Deco ring, it is set with a rectangular- cut emerald in a surround of 8/8- cut diamonds bordered by a millegra...

Here we have a gorgeous cluster ring crafted at a time when the Art Deco style was at the height of world design. This platinum piece focally features an impressive 3.00 carat emeral...