Mid-Century Aquamarine Diamond Cocktail Ring White Gold 1950s–1960s

A Mid-Century Aquamarine and Diamond Cocktail Cluster Ring in White Gold, Portugal, c. 1952-1975. Featuring an intense blue oval-cut aquamarine claw-set to the centre, encircled by 20 round brilliant-cut and single-cut diamonds, to an architectural gallery decorated with high-relief scrolled motifs, flowing through to a solid D-shape white gold shank. Aquamarine approximately 19.2ct (18.1 x 16.16 x 12.05 mm). Diamonds approximately 0.60ct in total, G/H color, VS clarity. Oporto mark for 800/1000 white gold (used 1938-1984); Oporto mark for jewelry (used 1938-1984); maker’s mark for Manuel da Silva...

Contemporary Toi-et-Moi Blue Topaz and Diamond Cocktail Ring in 19.2kt White Gold, Portuguese. A strikingly modern reinterpretation of the romantic toi-et-moi form, this Portuguese r...

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...

This Mid Century ring from the 1950s features an emerald cut aquamarine weighing approximately 8.80 carats, displaying vibrant clarity and soft blue color. Accented by six marquise a...

Aquamarine and diamond cocktail ring. Set with an octagonal emerald-cut natural unenhanced aquamarine in an open back claw settin...

This Mid Century ring showcases an 8.30 carat aquamarine framed by sparkling F-G color diamonds, crafted in platinum for timeless elegance.

Centering a rectangular step-cut aquamarine weighing approximately 19.32 carats Transparent light blue in color and set in basket via corner tab prongs Flanked by rows of prong set t...