Lot 405

An Antique Ruby, Diamond and Gold Ring, circa 1910

Centering a round ruby weighing 2.68 carats, between a pair of old European-cut diamonds weighing approximately 1.65 carats, in 18k gold, size 7 1/2

With report 1140122 dated 7 May 2024 from the American Gemological Laboratories stating natural sapphire. Origin: Burma (Myanmar). Enhancement: no gemological evidence of heat.

Estimate: $8,000-10,000 CAD

Lot 406

A Belle Époque Aquamarine and Platinum Brooch/Pendant, Tiffany & Co., circa 1910

The delicately pierced plaque featuring a lozenge-shaped aquamarine weighing approximately 15.60 carats, decorated with floral motifs and trailing garlands, and with a small pendant drop, set throughout with old European-cut diamonds, in platinum and 18k gold, signed Tiffany & Co., with original box

Estimate: $8,000-12,000 CAD

Lot 408

An Art Deco Diamond and Platinum Bracelet, circa 1930

The geometric and arched panels featuring a trio of old European-cut diamonds weighing approximately 3.20 carats, accented by old single-cut diamonds weighing approximately 13.80 carats, in platinum, length 7 1/4 inches

Estimate: $8,000-12,000 CAD

Lot 288.05

A Diamond and Platinum Brooch, circa 1920

The circle motif featuring a row of twenty-three round diamonds weighing approximately 5.25 carats, in platinum

Estimate: $5,000-6,000 CAD

Lot 92 A Belle Époque Diamond and Platinum Brooch, circa 1920

The large ribbon bow designed with finely pierced filigree decorated with old European-cut diamonds weighing approximately 5.60 carats, in platinum

Estimate: $4,000-6,000 CAD

Lot 44 An Antique Pink Tourmaline, Diamond and Gold Pendant Necklace, by Shreve & Co.

The elongated pendant featuring a trio of pink tourmalines weighing approximately 16.85 carats, decorated with textured acanthus leaves and scrolls, and small old European-cut diamonds weighing approximately 0.50 carat, joined to a fine chain, in 14k and 18k gold, length 16 inches

Estimate: $2,000-3,000 CAD

Lot 23

A Belle Époque Diamond, Platinum and Gold Choker Necklace, circa 1910

The openwork rectangular plaque decorated with floral motifs, set with old European and old single-cut diamonds weighing approximately 2.70 carats, in platinum and 14k gold, on a black velvet ribbon, length 12 inches

Estimate: $2,600-3,600 CAD

Lot 391

An Antique Opal, Diamond, Silver and Gold Pendant/Brooch, circa 1900

Set with an oval opal measuring approximately 15.96 mm by 12.49 mm by 6.79, framed by six old European-cut diamonds weighing approximately 3.30 carats, and smaller old-cut diamonds weighing approximately 0.95 carat, in silver and 14k gold

Estimate: $3,000-4,000 CAD

Lot 410

An Art Deco Diamond and Platinum Ring, circa 1930

Set with an old European-cut diamond weighing approximately 1.65 carats, accented by round diamonds weighing approximately 0.50 carat, and synthetic sapphires, in platinum, size 4

Estimate: $3,000-4,000 CAD

Lot 19

An Art Deco Diamond and Platinum Bracelet

The geometric and foliate tapering strap decorated with round and old European-cut diamonds weighing approximately 5.10 carats, and simulated emeralds, in platinum, length 7 1/8 inches

Estimate: $3,000-5,000 CAD

Lot 401

A Belle Époque Diamond, Enamel, Platinum and Gold Brooch, Tiffany & Co., circa 1910

The lozenge-shaped plaque with intricate foliate decorations atop peach coloured guilloché enamel, centering a round diamond weighing approximately 0.70 carat, accented by old European and single-cut diamonds weighing approximately 2.80 carats, signed Tiffany & Co., in platinum and 18k gold

Estimate: $6,000-8,000 CAD

Lot 450

An Antique Diamond, Platinum and Gold Ring, circa 1910

The dainty design set with a cushion-shaped diamond weighing approximately 1.00 carat, amid a floral surround accented by old European-cut diamonds, in platinum and 18k gold, size 7 1/4

Estimate: $4,200-5,000 CAD

Lot 412

A Belle Époque Aquamarine, Seed Pearl, Diamond, Demantoid Garnet, Platinum and Gold Pendant Necklace, circa 1910

The oval wreath set with an oval aquamarine weighing approximately 23.00 carats, the floral surround accented by seed pearls, rose-cut diamonds and demantoid garnets, with a fancy link chain accented by seed pearls, in platinum and 14k gold, length 17 3/4 inches

Estimate: $4,000-6,000 CAD

Lot 42

An Antique Amethyst and Gold Necklace, circa 1900

Composed of a graduated series of eighteen large round amethysts, weighing from approximately 58.00 carats to 8.00 carats, in 14k gold, length 16 1/2 inches

Estimate: $3,400-4,400 CAD

Lot 41

An Antique Emerald, Split-Pearl, Diamond and Gold Brooch, circa 1870

Designed as a classical dolphin, featuring emerald-cut and round emeralds and spilt-pearls, with ruby eyes, the fins and tail accented with rose-cut diamonds, in 18k gold

Estimate: $3,000-4,000 CAD

Lot 402

An Antique Diamond and Platinum Bar Brooch, circa 1920

Featuring five old European-cut diamonds weighing approximately 3.20 carats, accented with tiny round diamonds, in platinum

Estimate: $3,000-4,000 CAD

Lot 388

An Art Deco Diamond, Platinum and White Gold Pendant Necklace

The openwork geometric plaque centering a square diamond weighing approximately 0.50 carat, accented with round and baguette-cut diamonds weighing approximately 4.50 carats, in platinum, with a 14k white gold fancy link chain, length 17 inches

Estimate: $5,000-6,000 CAD

Lot 95

A Diamond and Platinum Double-Clip Brooch, circa 1930

The pair of pierced shield-shaped plaques decorated with old European-cut and single-cut diamonds weighing approximately 4.00 carats, in platinum

Estimate: $3,000-4,000 CAD

Lot 22

A Belle Époque Diamond and Platinum Necklace, circa 1910

The elongated articulated pendant set with two marquise-cut diamonds weighing approximately 0.45 carat, accented by single and old European-cut diamonds weighing approximately 0.95 carat, joined to a fancy link chain, in platinum, length 17 1/4 inches

Estimate: $2,800-3,800 CAD

Lot 21

A Belle Époque Diamond and Platinum Brooch

The curved pierced plaque decorated with old-cut diamonds weighing approximately 2.10 carats, in platinum

Estimate: $1,800-2,400 CAD