Vintage Diamond Neckligée Necklace 19.2K Yellow Gold Portuguese 20th Century

Mid-Century South Sea cultured pearl and diamond clasp necklace in yellow gold, 1950s/1960s. An exceptional Mid-Century necklace comp...

Claudino de Oliveira Art Deco Golden Pearl and Diamond Lavalier Necklace in Platinum, Portugal, 1940s. A refined Art Deco lavalier necklace by renowned Lisbon jeweler Claudino de Ol...

Cartier “C de Cartier” Necklace in 18K Yellow Gold, with Certificate, vintage from 2004. An emblem of quiet confidence and refined modernism, this C de Cartier necklace channels the...

Important one-of-a-kind 23-carat Ceylon natural no-heat sapphire and diamond convertible necklace/brooch in platinum and White gold, Portuguese, circa 1957, crafted for an occasion graced by Queen Elizabeth II during her royal visit to Lisbon, accompanied by a custom-fitted case. This exceptional and singular vintage jewel hails from the 1950s, an era of unrivaled elegance and exquisite craftsmanship. It boasts a transformative centerpiece crafted as a convertible necklace-brooch of unparalleled artistry. At its heart lies a resplendent round-shape natural Ceylon sapphire, a dazzling gem of remarkable rarity, weighing a remarkable 23.01 carats. The centerpiece is an exquisite focal point, a dazzling spectacle adorned with a stylized floral cluster delicately adorned with round brilliant-cut and marquise brilliant-cut diamonds, further accentuated by smaller oval-shape sapphires. This captivating cluster extends gracefully on either side, adorned with delicate swags of alternating marquise brilliant-cut diamonds and oval-shape sapphires, culminating in a sublime sapphire and diamond cluster terminal, which transitions seamlessly into an articulated link necklace meticulously set with diamonds throughout. The versatility of this Mid-Century jewel is underscored by its capability to transform into a striking brooch, secured with a click-shut and safety catch fitting, further augmented by a hinged pin brooch fitting. The exceptional 23-carat Ceylon sapphire stands as a testament to its rarity. Natural, non-heated sapphires of this caliber, especially surpassing 5 carats, are extraordinarily rare and highly sought-after, adding unparalleled allure and value to this piece. This remarkable jewel's historical provenance is steeped in significance, commissioned to Casa Branca de Brito jewelers by a distinguished Portuguese Lady...

Ladies 14k yellow gold and diamond necklace. Stamped 585 and weighs 22.4 grams. The diamonds are round brilliant cuts, .75 total carats, H to I color, Vs clarity. The necklace measur...

Chain in 18 karat yellow gold, eagle head hallmark. Thin antique necklace, it consists of a convict mesh which retains on the front, a round openwork pattern, set with rose-cut diamo...

A beautiful and classic 14k Gold and Diamond Station Necklace featuring 7 drops of a bed of diamonds in a teardrop shape approximately 0.79ct of round sparkling Diamonds. Chain measu...

This contemporary necklace is a true statement piece, meticulously crafted in 18K yellow gold and adorned with a dazzling array of 209 diamonds. Each of the diamonds is carefully set...