Antique Diamond Brooch, mid-19th century, $20,000–40,000

Fancy Intense Yellow Diamond Ring, 14.71 carats, $150,000–250,000

VAN CLEEF & ARPELS Two Coral and Diamond Brooches, ‘Rose de Noel’, $30,000–40,000

DE VROOMEN Cultured Pearl, Emerald, Diamond and Enamel Earrings, $2,000–4,000

DE VROOMEN Pink Tourmaline, Diamond, Enamel and Gold Earrings, $2,000–4,000

Ruby and Diamond Brooch, $8,000–12,000

Diamond Ring, 7.30 carats, $120,000–220,000

BULGARI Gold and Diamond Necklace, $18,000–24,000

RENÉ BOIVIN Aventurine Quartz and Emerald Cuff Bracelet, $15,000–20,000

Emerald and Diamond Necklace, approximately 100 carats, $500,000–800,000