CONSTANTINE JEWELS

Convertible Lapis Lazuli and 9K Yellow Gold Necklace and Bracelet Set This convertible two-piece set pairs 56 polished royal-blue lapis lazuli beads with six fluted 9K yellow gold s...

Three graduated strands of dark Tahitian cultured pearls fall in gently staggered arcs, finished with a sculptural openwork diamond clasp in 18K white gold. The 219 individually knot...

Antique Art Deco 3 Carat Diamond Openwork Plaque Brooch in Platinum & 18K Gold An Art Deco diamond plaque brooch with a symmetrical openwork design, centred on a round old Europ...

Tiffany & Co. Elsa Peretti Sterling Silver Mesh Bib Necklace, 66 cm An elegant Elsa Peretti Mesh Bib necklace for Tiffany & Co., crafted in sterling silver and distinguished...

Vintage Triple-Strand Akoya Pearl Necklace with Diamond and Mabé Pearl Clasp in 14K Gold An elegant three-strand Akoya cultured pearl necklace, distinguished by a decorative 14ct go...

GCS London-Certified Green and Lavender Jadeite Dragon Pendant with Diamond-Set 18K Gold Bail Details * Gemstone: Natural jadeite jade * Colour: Pale green with subtle lavender-gre...

GCS London Lab Certified Green and Lavender Jadeite Deer Pendant with Diamond-Set 18K Gold Bail Details * Gemstone: Natural jadeite jade * Colour: Pale green, lavender and creamy w...

Art Deco Style 3 Carat Natural Yellow Sapphire and Baguette Diamond Platinum Ring, GCS Report Certified An elegant Art Deco style platinum ring centred with an oval-cut natural yell...

160 Carat Blue Topaz, Ruby and Pink Sapphire Necklace in 14K Gold and Sterling Silver Gilt An impressive blue topaz, ruby and pink sapphire necklace, combining luminous sky-blue gem...

Art Deco Cocktail Platinum Ring with Diamonds and Calibré Sapphires, Openwork mount, circa 1930 An impressive Art Deco platinum ring, combining bright diamonds, rich blue sapphire a...

Lalique Limited Edition Red Crystal Serpent, Aventurine & Garnet Necklace, 082/188 An exceptional Lalique “Serpent Pierres Fines” necklac...

Vintage Carl Bucherer Sapphire and Diamond Ribbon Brooch in 18K White Gold An elegant vintage sapphire and diamond brooch by Carl Bucherer, crafted in 18K white gold. Alternating ri...

Mid-Century Aquamarine and 14K Gold Sculptural Rope Cluster Earrings, Circa 1960 An expressive pair of mid-century aquamarine earrings, crafted in 14K yellow gold with an intricate ...

1950s Vintage Triple-Strand / Three Row Akoya Pearl Necklace with Amethyst Floral 9ct Gold Clasp An elegant vintage three-strand Akoya cultured pearl necklace, distinguished by a su...

Rare Akoya Pearl Double Strand Long Sautoir, Antique Art Deco Platinum Diamond Clasp, Ciro Box & 1960 Certificate Details * Period: Mid-20th-century pearl strands, circa 1960; asso...

An elegant platinum sapphire and diamond ring with a distinctive Art Deco aesthetic, centred with an oval-cut sapphire weighing approximately 1.40 carats. The sapphire displays a ric...

An elegant emerald and diamond ring in 18K white gold, centred with a cushion-cut emerald weighing approximately 1.50 carats. The emerald displays a bright green colour, with visible...

Two Vintage Tiger’s Eye Long Bead Necklaces with Carved Accents, 98cm & 90cm An appealing pair of long tiger’s eye necklaces, displaying rich honey-gold, caramel and deep brown ...

Long Tiger’s Eye Bead Necklace with Carved Chinese Prosperity Motif, 90 cm An elegant tiger’s eye necklace featuring polished beads measuring approximately 8–10 mm, complemented by ...

Long Tiger’s Eye Bead Necklace with Carved Chinese Prosperity Motif, 98 cm A substantial tiger’s eye necklace featuring polished beads averaging approximately 12 mm, distinguished b...

Qing Dynasty Hetian Jade Openwork Crane and Lotus Pendant Necklace (Certified) A substantial Qing dynasty Hetian jade pendant, intricately carved with cranes among lotus flowers, le...

An exceptionally long Art Deco style Japanese Akoya cultured pearl rope necklace, measuring approximately 200 cm and featuring lustrous smaller pearls punctuated by larger, softly ir...

A substantial Vintage Tiffany & Co. brooch, circa 1960s, crafted in richly textured 18 karat yellow gold and centred on a rosette of seven round faceted rubies. The sculptural d...

Art Deco Citrine, Aquamarine and Natural Zircon Clip Brooch in 14K Gold, circa 1930s - Certified and Tested A striking Art Deco clip brooch, circa 1930s, crafted in tested 14K White...

An elegant circa 1960s necklace comprising three graduated strands of creamy Akoya cultured pearls, finished with a finely chiselled 18K white gold floral clasp set with small rubies...

An elegant pair of diamond drop earrings crafted in 18ct white gold, with articulated openwork pear-shaped drops that move freely and catch the light from every angle. Each earring ...

A bold and impressive 1940s Retro cocktail ring centred with an exceptionally large rectangular step-cut citrine of rich Madeira colour, set in a substantial 10K yellow gold mount. ...

Description A striking aquamarine and diamond cocktail ring, crafted in platinum in Art Deco style and centred with an impressive rectangular step-cut aquamarine weighing approximate...

A striking late 20th-century lapis lazuli necklace composed of twenty-one generously proportioned spherical beads, each measuring approximately 22 mm in diameter. The lapis displays ...

A substantial three-strand necklace of graduated Japanese Akoya cultured pearls, measuring approximately 6–9 mm and arranged in staggered lengths from approximately 55 to 62 cm. Det...

An unusual vintage opal and diamond hinged bangle, centred with a substantial oval cabochon opal weighing approximately 9.63 carats. The opal displays lively play-of-colour across th...

A substantial vintage five-strand cultured freshwater pearl necklace dating to the 1980s. Details Period: 1980s Date of manufacture: Circa 1980–1989, estimated Style: Vintage / Sta...

A striking large citrine and diamond cocktail ring centred by a substantial oval-cut citrine of rich golden-yellow colour. The citrine measures approximately 21 x 13 x 10 mm and is ...

An exceptional late 19th-century French transformable brooch designed as a naturalistic branch of dog rose, finely set throughout with rose-cut diamonds. Details: Late 19th century,...

A striking antique Victorian moonstone brooch, designed as an eight-rayed celestial star and set throughout with graduated cabochon moonston...

A striking long sautoir necklace composed of individually shaped baroque freshwater cultured pearls, displaying an attractive creamy-white body colour with strong lustre and colourfu...

This late Victorian captivating natural saltwater pearl dress ring is centred with an impressive baroque pearl measuring approximately 16.7 x 13.5 mm. Details * Gemstone: Natural s...

An exceptional vintage rhodolite garnet and diamond cluster ring, dating to circa 1970-1979 and attributed to the United Kingdom. Fine rhodolite garnets, particularly associated wit...

A spectacular aquamarine and diamond cocktail ring, centred by an exceptionally large rectangular step-cut aquamarine of 30 carats. Measuring approximately 22 × 15 × 12 mm, the aqua...

An exceptional pair of Estate Vintage Tiffany & Co. Retro earrings, exquisitely crafted in 14 karat gold and dating to early to mid-1940s. Details Maker: Tiffany & Co. Orig...

A refined Art Deco emerald and diamond brooch, circa 1925–1935, designed as an elongated geometric plaque in platinum and 18 karat gold. The centre is set with a rectangular step-cu...

Bold, contemporary, unisex and effortlessly wearable, this substantial bracelet is crafted from polished 14mm vivid blue agate beads, highlighted by a striking sterling silver pavé e...

A substantial and exceptionally versatile vintage endless rope necklace composed of 136 large cultured freshwater pearls, dating to the 1980’s. Details * Period: 1980’s * Origin: U...

A striking vintage Baltic amber necklace centred by an exceptionally large freeform removable amber pendant suspended from an original 9ct gold bail. Details * Period: Circa 1970 *...

A refined French negligee necklace dating from the early 20th century, designed with two elegant asymmetric gemstone drops. The necklace centres on a cushion-cut pink tourmaline fra...

A striking vintage carved jadeite and black onyx sautoir necklace with strong scale, movement and decorative presence. The necklace is composed of double rows of polished black onyx...

A striking tanzanite and diamond ring centred with an oval-cut tanzanite weighing approximately 7.50 carats. The tanzanite displays an exceptionally vivid blue-violet colour, shifti...

A beautifully made vintage flower brooch by Tiffany & Co., created in France circa 1960 and crafted in richly textured 18-carat yellow gold. The brooch is designed as a stylised...

Italian-Sourced Golden South Sea Pearl and Diamond Necklace and Ring Suite in 18 Karat Gold Description A coordinated golden South Sea cultured pearl and diamond jewellery suite, s...

An elegant golden South Sea cultured pearl and diamond pendant necklace, sourced in Italy. The pendant features a round golden South Sea cultured pearl measuring approximately 13mm,...

A refined golden South Sea cultured pearl and diamond ring, sourced in Italy. The ring is centred on a round golden South Sea cultured pearl measuring approximately 11.2mm, displayi...

A refined pair of vintage Mikimoto earrings, crafted in 18 karat yellow gold and set with lustrous cultured Akoya pearls measuring approximately 7.3mm. Each earring is designed as a...

An exceptional monumental graduated amber necklace of ethnographic character, composed of thirty-four substantial rondelle beads weighing 602 grams. Its exceptional scale recalls th...

An elegant Antique early 20th-century diamond openwork plaque brooch, dating to circa 1915–1930 and designed as an elongated rectangular panel of finely pierced floral, foliate and g...

An elegant mid-century vintage double-strand Akoya cultured pearl necklace distinguished by an exceptional hand-fabricated diamond and natural emerald clasp in 18 karat gold. Compos...

98 cm Japanese Cultured Akoya Pearl Opera Necklace with 18 Karat Gold Sapphire & Emerald Cabochon Clasp Details * Japanese cultured Akoya pearls * Pearl diameter: approximately...

Oversized Baroque Cultured Freshwater Pearl Opera Necklace, 45 Pearls, 90 cm / 35.43inch, 137 Grams, Sterling Silver Clasp Details * 45 cultured freshwater baroque pearls * Pearl s...

A beautifully sculpted vintage floral ring crafted in 18 karat yellow gold and designed as a richly textured garden of twenty-one individually modelled flowers. Details * 18 karat ...

An elegant and beautifully crafted French mid-century diamond brooch, executed in platinum and 18 karat yellow gold as a sculptural cascade of finely twisted gold ribbons, gracefully...

An elegant vintage rope necklace composed of graduated creamy white and silver-grey cultured pearls, finished with a clasp bearing Italian maker’...