Lot 417

An Antique Amethyst, Diamond, Split-Pearl, Silver and Gold Pendant

The large oval amethyst weighing approximately 93.00 carats, inset with a star motif centering an old mine-cut diamond weighing approximately 0.40 carat, amid rose-cut diamond rays, framed by split-pearls and diamond-set floral motifs, in silver and 18k gold

Estimate: $1,500-$2,000

Lot 413

An Antique Pair of Diamond, Platinum and Gold Ear Pendants

Each elongated earring set with a large and a small old European-cut diamond, joined by chain-link, in platinum and 14k gold

Estimate: $250-$350

Lot 106

An Art Deco Diamond, Sapphire, and Platinum Brooch

Composed of a two-part design, with an elongated tapering line with sapphires and diamonds and a collet-set round diamond drop weighing approximately 0.75 carat, suspending from a hexagonal geometric plaque with round diamonds and sapphire lattice channels, attached by a chain to a similarly-set small bar brooch, in platinum

Estimate: $1,200-$1,800

Lot 99

An Antique Diamond, Silver and Gold Necklace

The floral pendant panel suspending from a scrolling vine, decorated throughout with old European and rose-cut diamonds weighing approximately 3.75 carats, mounted in silver and 14K gold, joined to a later added 14k white gold chain, length 15 3/4 inches

Estimate: $1,000-$1,400

Lot 407

An Antique Opal, Garnet Doublet and Gold Brooch

The petite circular motif with an openwork scalloped frame, set with a row of opals surrounded by round doublets composed of garnet and green glass, in 14k gold

Estimate: $200-$300

Lot 103

A Belle Époque Diamond and Platinum Bar Brooch

The elongated tapering bar with pierced oblique wave motifs, featuring five collet-set diamonds weighing approximately 0.50 carat, amid a ground entirely decorated with old-European and rose-cut diamonds weighing approximately 0.65 carat, in platinum

Estimate: $800-$1,200

Lot 406

An Antique Seed Pearl, Enamel and Gold Pendant Necklace

The tubular mesh linking strap suspending slender swag plaques set with pearls and gold florets, centering a circular floral pendant further set with baroque pearls and black enamel, the pendant detaches to wear as a brooch, in 18k gold, French assay marks, length 15 1/2 inches

Estimate: $1,300-$1,600

Lot 105

A Pair of Art Deco Diamond and Platinum Ear Pendants

The fan-shaped motifs set with old-cut diamonds and simulated sapphires, from articulated elongated diamond-set lines, in platinum

Estimate: $1,500-$2,000

Lot 173

An Art Deco Emerald, Diamond and Platinum Bar Brooch

The elongated rectangular bar composed of chamfered angular form centering a channel of square emeralds, decorated throughout with round and old European-cut diamonds weighing approximately 1.60 carats, in platinum

Estimate: $600-$800

Lot 148

An Antique Diamond, Platinum and Gold Bracelet

Fashioned on the top with a series of seven square panels decorated with old European and rose-cut diamonds, to double knife-edge linking, in platinum and 18k gold, inner circumference 7 1/8 inches

Estimate: $1,200-$1,600

Lot 125

An Antique Diamond, Enamel and Gold Mourning Ring

The tapering band encircled with black enamel, featuring a floral cluster and a deep scalloped gallery set with rose-cut diamonds, in 14k gold, size 8 1/2

Estimate: $500-$700

Lot 83

An Antique Diamond, Enamel, Silver and Gold Ring

The elongated top decorated with rose-cut diamond florets amid a cobalt blue enamel ground, within a frame of smaller rose-cut diamonds, mounted in silver and 10k gold

Estimate: $200-$300

Lot 102

An Antique Diamond and Platinum Bar Brooch

The elongated bar set with a graduated row of old European-cut diamonds weighing approximately 1.80 carats, mounted in platinum, with fitted box

Estimate: $800-$1,200

Lot 108

An Art Deco Diamond, Emerald and Platinum Ring

The oval plaque decorated with seven diamonds and accented by a quartet of tiny emeralds, to shoulders engraved with leaf motifs, in platinum, size 5 1/2

Estimate: $400-$600