Ceylon Sapphire and Diamond Convertible Necklace-Brooch Designed as an articula

An exceptional necklace showcasing a total weight of 45 carats, set in 18K white gold. Sapphires: 18 natural cushion-cut blue sapphires, weighing a combined 24 carats, displaying a ...

Suspending a detachable pendant featuring an oval-shaped sapphire, framed by round diamonds, the necklace set with round diamonds and a pear-shaped diamond. sapphire weighing 9.77 c...

Exquisite 24-Carat Burmese Unheated Sapphire Pendant in Platinum This rare and timeless piece of luxury features a stunning 24-carat Burmese unheated sapphire set in a beautiful pla...

Magnificent Tiffany & Co. 22 Carat Natural Blue Sapphire and Diamond Necklace An extraordinary Tiffany & Co. creation featuring a magnificent natural cushion-cut blue sapphire weigh...

A beautiful necklace featuring a 27.78 Carats of Natural Ceylon Sapphires and 11.07 Carats Diamond Accents made in Platinum. Sapphires have extraordinary durability - they excel in h...

A jewel of distinction and grandeur, this 18K solid white gold sapphire and diamond necklace captures the very essence of high jewelry. Designed in a Winston-inspired style, it radia...

A stunning, fine and impressive vintage 13.50 carat Ceylon blue sapphire and 3.27 carat diamond, platinum necklace; part of our diverse antique jewelry collections. This stunning vintage sapphire...

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...