501. Castellani

Gold tiara, second half of the 19th century

502. Castellani

Gold and glass necklace, circa 1880

503. Castellani

Micromosaic and enamel pendant, mid-19th century

504. Castellani

Emerald, ruby and enamel pendent brooch, circa 1860

505. Carlo Giuliano

Gem set, enamel and diamond necklace, circa 1895

506. attributed to Giacinto Melillo

Gold necklace, circa 1870

507. Wièse

Gold, emerald and blister pearl necklace, circa 1890

508. Wièse

Jadeite, ruby and emerald buckle, late 19th century

509. Diamond necklace, 1880s

511. Pair of ruby and diamond pendent earrings, mid-19th century and later

512. Gem set and diamond jewel, circa 1900

513. Exceptional natural pearl, ruby and diamond necklace

515. Cartier

Gem set and diamond brooch, ‘Palmette’, circa 1936

516. Van Cleef & Arpels

Gold and diamond brooch, ‘Mimosa’, circa 1950

517. Marina B

Unique emerald, pink sapphire and diamond brooch, ‘Giulia’, circa 1989

518. Marina B

Unique pair of gem set and diamond ear clips, ‘Cacatoes’, circa 1989

519. Van Cleef & Arpels

Pair of sapphire and diamond pendent ear clips, 1970s

520. Fancy Intense Yellow diamond ring

521. Cartier

Ruby and diamond parure, 1980s

522. David Webb

Pair of emerald and diamond pendent ear clips

524. Adler

Emerald and diamond parure

526. Pair of Fancy Intense Yellow diamond earrings

527. Van Cleef & Arpels

Diamond bracelet, 1970s

528. Diamond ring

529. Bulgari

Emerald and diamond necklace

531. Diamond sautoir

532. Van Cleef & Arpels

'Mystery-set' gold, ruby and diamond cigarette case, circa 1950

533. Bulgari

Emerald and diamond ring

534. Adler

Fine sapphire and diamond pendent necklace

535. Impressive Fancy Intense Yellow diamond ring

536. Cartier

Rare nephrite, hardstone, mother-of-pearl and diamond mystery clock, circa 1980

537. Pair of diamond pendent earrings

538. Diamond rivière necklace

539. Chopard

Unique pair of gem set pendent earrings, ‘Animal World’

540. Colour change sapphire and diamond ring

541. Tiffany & Co.

Tourmaline, tanzanite and diamond brooch, ‘Fireworks’, circa 1993

542. Pink sapphire and diamond ring

544. Bulgari

Lady's emerald and diamond wristwatch, 'Serpenti'

545. JAR

Superb sapphire, purple sapphire and diamond ring

546. Van Cleef & Arpels

'Mystery-set' sapphire and diamond ring

547. Van Cleef & Arpels

'Mystery-set' pair of sapphire and diamond pendent ear clips

548. Van Cleef & Arpels

'Mystery-set' sapphire and diamond bracelet

549. Natural pearl and diamond pendant

550. Cartier

Pair of ruby and diamond ear clips, circa 1970

551. Attractive ruby and diamond necklace

552. Cartier

Exquisite onyx and diamond brooch, 1910

553. Van Cleef & Arpels

Diamond bracelet, 1950s

554. Marchak

Ruby and diamond necklace, 1950s