Gold, Emerald, Diamond, Plique-à-Jour Enamel Brooch, Marcus & Co., Circa 1900 - Sotheby's

An Aquamarine and Diamond Brooch, by Suzanne Belperron, circa 1940

Oscar Heyman Brothers Aquamarine and Diamond Bracelet A stunning signed bracelet from Oscar Heyman Brothers, circa 1925, showcases 24 aquamarines, 25.00 carats, linked with diamond accents, 1.35 carats, handmade in platinum.

Paolo Costagli Large Aquamarine Pendant on Gem-Set “Brillante” Chain Betteridge

Cartier London Impressive Aquamarine Diamond Gold Ring 18 karat yellow gold, aquamarine and diamond ring by Cartier London, set in the center with an emerald-cut aquamarine measuring 24.02 by 16.39 by 9.35 mm., weighing approximately 28.50 carats

Art Deco aquamarine and diamond clip brooch by Cartier, London c.1935 , the stylised arrow of lozenge outline, centred by a principal rectangular cut aquamarine bordered by oval and fancy cut aquamarines in a geometric design

Verdura Plume Earclips Platinum mountings set with 58 round brilliant-cut diamonds and approximately 100 carats of aquamarine briolette beads.

Paul Morelli “Star Anise” Aquamarine & Diamond Cluster Earrings “Star Anise” aquamarine and diamond cluster earrings in 18k white gold. Diamonds weighing 0.17 total carats. Post with clutch backs (for pierced ears). 14mm diameter. Handcrafted in Philadelphia. Designed by Paul Morelli.

With a color reminiscent of a summer meadow full of buttercups, peridot is the perfect birthstone for the month of August. This glowing green gem has quite an interesting past on par with precious gemstones of much greater value.

With a color reminiscent of a summer meadow full of buttercups, peridot is the perfect birthstone for the month of August. This glowing green gem has quite an interesting past on par with precious gemstones of much greater value.

Property from the Estate of Katharine Hepburn – Platinum, Diamond and Sapphire Jardinière Brooch, Trabert & Hoeffer-Mauboussin – Designed as a charming flowering plant set with two triangle-cut diamonds weighing approximately 1.00 carat

Magnificent Platinum, Fancy Intense Orangy Pink Diamond and Diamond Ring

A rare and magnificent unmounted Burmese sapphire weighing 121.00 carats

A pair of emerald and diamond earclips suspending a drop-shaped

A spectacular diamond necklace from the collection of Flora Sassoon

The Victory Diamond, formerly belonging to Florence Gould, is named in honor of the Allied victory in World War II.

Graff Vivid Yellow diamond is among the largest Fancy Vivid Yellow diamonds in the world and is one of the highlights of Sotheby’s Geneva sale

a 15.23-carat Fancy Intense Orangy Pink diamond and diamond ring

Set with a detachable pendant decorated with a step-cut emerald within a frame of cushion-shaped diamonds, the surmount designed as a bow accented with a carré-cut and cushion-shaped and single-cut diamonds, terminating on briolette diamond drops, case stamped Janesich.

Composed of a line of stylised gold leaves, accented with cabochon emeralds and brilliant-cut diamonds, suspending a fringe of seven emerald drops, length approximately 380mm, signed Cartier Inc, numbered, French export and partial maker’s marks.

Claw-set with a cabochon emerald weighing 26.34 carats, signed Bulgari, case by Bulgari, size 60.

Of floral and foliate design, set with pear-shaped and circular-cut garnets, a central natural pearl measuring 10.48 x 10.68 x 7.44mm, button-shaped cultured pearls and cushion-shaped, circular-, single-cut and rose diamonds, inner circumference approximately 380mm, unsigned, the detachable diamond

The emerald, carved in the Persian style, accented with palmette motifs and millegrain-set with circular-cut and rose diamonds, suspending a baroque natural pearl drop, later seed pearl chain, length approximately 420mm, signed Cartier, fitted case stamped Cartier.

Designed as stylised white bryony, the leaves decorated with plique-à-jour enamel, circular-, single-cut and rose diamonds, the berries in glass, signed Lalique, later brooch fitting.

The pendant designed as two swans in a pond, decorated with iridescent enamel, suspended from a fine link chain, length approximately 610mm, signed Lalique, French assay and maker’s marks.