Tiffany & Co. Schlumberger red enamel and diamond bracelet in 18-karat gold.

Chopard bracelet from the Red Carpet collection with 24.15 carats of diamonds and 9.36 carats of rubies set in titanium.

Mikimoto World of Creativity ring with a 12 mm white South Sea cultured pearl and diamonds set in 18-karat yellow gold.

Van Cleef & Arpels Peacock Décor necklace, from the Bals de Légende collection, with a 27.75-carat pear-shaped morganite, diamonds, turquoise, multicolour sapphires, and mandarin and tsavorite garnets set in 18-karat white and yellow gold.

Panthère de Cartier ring of onyx, emeralds, and diamonds, set in 18-karat white gold.

Fabergé Tatiana Violette ring with a central violet sapphire, and dual bands of white and violet diamonds, violet sapphires, and amethysts.

Bulgari Diva pink-gold bracelet with mother-of-pearl and pavé diamonds (8.40 carats).

De Beers Aura Necklace with 831 cushion-cut and round brilliant-cut diamonds set in white gold for a total weight of 28.33 carats.

Wellendorff Forget-Me-Not blue enamel 18-karat white-gold ring with diamond; Genuine Delight Coral enamel 18-karat yellow-gold ring with diamonds; Espresso enamel 18-karat yellow-gold ring with diamonds.

Buccellati 18-karat yellow-and-white-gold bracelet with 10 oval cabochon emeralds (12.44 carats) and 180 round brilliant-cut diamonds (6.27 carats).

De Grisogono Melody of Color ring with one cabochon-cut amethyst surrounded by 128 black diamonds set in white gold.

Harry Winston Cluster diamond earrings (7.88 total carats) set in platinum.