Lot 422

An Art Nouveau Emerald, Diamond, Enamel and Gold Ring, by Marcus and Co., circa 1900

Fashioned with elaborate intricate scrolling wirework with a green guilloché enamel ground, decorated with an emerald-cut emerald weighing approximately 2.50 carats, a yellow marquise-cut diamond weighing approximately 1.50 carats, a trio of old mine-cut diamonds weighing approximately 2.65 carats, and a pear shaped double-rose-cut diamond weighing approximately 0.40 carat, in 18k gold, size 5 3/4

Estimate: $30,000-40,000 CAD

Lot 420

A Belle Époque Aquamarine, Diamond and Platinum Pendant Necklace, circa 1910

The large scalloped frame surrounding a suspended cushion-shaped aquamarine weighing approximately 20.00 carats, further embellished by ribbon bow motifs, set with old-cut diamonds weighing approximately 2.25 carats, joined to a fancy linking chain accented by small pearls, in platinum, length 16 1/2 inches

Estimate: $14,000-16,000 CAD

Lot 99

A Retro Aquamarine, Ruby, Diamond, Platinum and Two-Tone Gold Bracelet, circa 1940

Featuring an emerald-cut aquamarine weighing approximately 35.00 carats, between ruby and diamond arches joined to scrolling links and double serpentine linking chains, in platinum, 14k pink and yellow gold, length 7 1/4 inches

Estimate: $5,000-7,000 CAD

Lot 383

An Art Deco Diamond and Platinum Bracelet, circa 1930

The strap featuring a trio of articulated geometric openwork panels alternated with circular links, entirely decorated with round and baguette-cut diamonds weighing approximately 14.75 carats, in platinum, length 7 1/2 inches

Estimate: $12,000-16,000 CAD

Lot 381

A Diamond and Platinum Double-Clip Brooch, circa 1960

The large navette-shaped bombé form composed of a pair of finely pierced shield-shaped plaques set with round diamonds and baguette-cut diamonds weighing approximately 8.90 carats, in platinum

Estimate: $10,000-14,000 CAD

Lot 364

An Antique Turquoise, Diamond, Silver and Gold Necklace, circa 1860

Fashioned as a serpentine dragon, its highly flexible attenuating body entirely set with round turquoises, joined to a pavé-set turquoise head with jagged teeth, further embellished by diamond-set nose and eyebrows, and garnet eyes, in silver and 14 gold, length 16 inches, with fitted box, mid 19th century

Estimate: $8,000-12,000 CAD

Lot 385

An Art Deco Diamond, Enamel and Platinum Ring, circa 1930

Centering an old European-cut diamond weighing 2.00 carats, the circular frame set with tiny rose-cut diamonds and a black enamel scalloped motif, to a gallery pierced with foliate motifs, in platinum, size 7 3/4

Estimate: $8,000-12,000 CAD

Lot 58

An Art Nouveau Emerald and Gold Ring, by Tiffany & Co., circa 1890

The heavy bold design featuring a cabochon emerald weighing approximately 6.75 carats, amid broad sculpted pansies and acanthus leaf shoulders, in 18k gold, size 4 3/4

Estimate: $5,000-7,000 CAD

Lot 362

A Diamond and Platinum Brooch, circa 1930

Fashioned as a large scalloped form centering a round diamond weighing approximately 0.95 carat, between a pair of old European-cut diamonds weighing approximately 1.05 carats, amid elaborate pierced fans, mitres, circles, arches and scrolling ribbons and further decorated with round diamonds weighing approximately 8.50 carats, in platinum

Estimate: $5,000-7,000 CAD

Lot 42

An Art Deco Jadeite, Diamond and Platinum Bracelet, circa 1930

Of Japonisme inspiration, the four strands comprising eighty-four jadeite beads graduated from 8.4 mm to 3.8 mm, attached to an openwork geometric twin buckle-motif clasp featuring an oval carved jadeite depicting a bird amongst flowers, the odeonesque arches and cylinders accented by Swiss-cut and baguette-cut diamonds, in platinum, length 8 inches

Estimate: $14,000-18,000 CAD

Lot 32

An Antique Diamond and Platinum Brooch, circa 1920

The pierced crescent of door knocker form centering leaf motifs and extending to attenuating curved arms, entirely set with old European and old single-cut diamonds weighing approximately 3.50 carats, in platinum

Estimate: $3,000-4,000 CAD

Lot 30

An Antique Diamond and Platinum Brooch, circa 1915

The large tapering openwork oval form with graduated rows of old-cut diamonds, with foliate motif terminals, the diamonds weighing approximately 2.45 carats, in platinum

Estimate: $2,000-4,000 CAD

Lot 38

An Antique Renaissance Revival Emerald, Enamel and Gold Pendant, circa 1880

The large cruciform set with variously cut emeralds weighing approximately 5.85 carats, the reverse decorated with polychrome enamel floral and foliate motifs, in 18k gold

Estimate: $2,000-4,000 CAD

Lot 28

An Art Deco Emerald, Diamond and Platinum Ring, Birks Ellis-Ryrie, circa 1935

Centering a cushion-shaped emerald carved with a flower, weighing approximately 7.50 carats, amid shoulders of geometrical motif set with baguette-cut and round diamonds weighing approximately 0.90 carat, in platinum, size 3 1/2

Estimate: $3,000-4,000 CAD