80.1 Carat Tanzanite Rose Cut Diamond Maharaja Necklace

Cast from 18-karat gold, this exquisite necklace is handset with 12.65 carats Tanzanite and 6.62 carats of sparkling diamonds. See matching earrings, sold separately. FOLLOW MEGHNA ...

Cast in 18K gold and sterling silver. The Bora Bora pendant is stunningly set in 2.45 carat marquise lapis and diamonds. Bora Bora Collection is inspired by the beautiful French Po...

Crafted by the legendary Tiffany & Co., this enchanting necklace is a rare and unique masterpiece of early 20th-century American jewelry design. Delicately handcrafted, the one-of-a-kind creation is set with two stunning examples of Kashmir sapphires weighing 5.65 and 4.60 respectively. These gemstones are certified by the American Gemological Laboratories as Kashmir in origin and completely untreated, an extreme rarity for Kashmirs. Dozens of sparkling white diamond accents complement the brilliant blue stones in a romantic, winding 18K yellow gold setting. These incredible sapphires would have been sourced by George Frederick Kunz, Tiffany & Co.'s expert gemologist, who selected only the finest gemstones for the firm's unique creations. The sapphires in this necklace are truly superior examples. Kashmir sapphires were first unearthed in the early 1880s after a landslide in the northwestern region of the Indian subcontinent. They are celebrated not only for their rarity, but also for the softness of their distinctive blue hue. Boasting incredible color and brilliance, untreated Kashmir sapphires of this quality are scarce, especially within an antique Tiffany setting. Since the firm's inception in 1837, Tiffany & Co. has been at the forefront of luxurious design and craftsmanship, especially in the realm of fine jewelry. Founder Charles Lewis Tiffany...

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...