Lot 473

A Fine Sapphire, Emerald, Diamond and Platinum Ring

The ‘toi et moi’ design set with an oval sapphire weighing approximately 3.95 carats, and an oval emerald weighing approximately 3.50 carats, accented by oval diamonds, with French assay mark, signed Areza, in platinum, size 6 1/2

Estimate: $70,000-90,000 CAD

Lot 472

A Ruby and Platinum Line Bracelet, by Gattle

Comprising thirty-eight rubies weighing approximately 25.00 carats, signed Gattle, in platinum, length 6 3/4 inches

With report 6512963170 dated 6 May 2025 from the Gemological Institute of America stating three stones tested at random were found to be natural rubies. Geographic origin: Burma (Myanmar). Treatment: No indications of heating.

Estimate: $50,000-70,000 CAD

Lot 480

An Alexandrite, Diamond and Platinum Ring, Birks

Set with a cushion-shaped alexandrite weighing approximately 8.00 carats, accented by baguette-cut and marquise-cut diamonds weighing approximately 1.00 carat, signed Birks, in platinum, size 6 1/4

Estimate: $30,000-40,000 CAD

Lot 470

A Sapphire, Diamond and Platinum Pendant

Set with a cushion-shaped sapphire weighing approximately 12.00 carats, accented by round diamonds weighing approximately 2.45 carats, in platinum

Estimate: $20,000-26,000 CAD

Lot 150

A Fine Emerald, Diamond and Platinum Ring

Centering a square emerald-cut emerald weighing approximately 14.00 carats, accented by graduated baguette-cut diamonds weighing approximately 2.30 carats, in platinum, size 6 1/4

Estimate: $18,000-24,000 CAD

Lot 495

An Unmounted Coloured Diamond

The oval fancy vivid purplish pink diamond measuring 6.20 mm by 8.04 mm by 2.19 mm and weighing 0.40 carat

With Argyle report 21987 dated 17 March 2011 stating that the diamond weighing 0.42 carat is 3P colour, P1 clarity. This diamond has been unearthed from the Rio Tinto’s Argyle Diamond Mine in the east Kimberley region of Western Australia.

With report 2135744083 dated 10 April 2012 from the Gemological Institute of America stating that the diamond is fancy vivid purplish pink, natural colour

Estimate: $16,000-20,000 CAD

Lot 278

An Aquamarine, Diamond and Platinum Ring

Set with a marquise-cut aquamarine weighing approximately 36.70 carats, accented by round diamonds weighing approximately 3.05 carats, in platinum, size 8 3/4

Estimate: $15,000-20,000 CAD

Lot 294

A Sapphire, Diamond and White Gold Ring

Set with a oval sapphire weighing approximately 16.00 carats, accented by round and baguette-cut diamonds weighing approximately 3.75 carats, in 18k white gold, size 7 1/4

Estimate: $15,000-20,000 CAD

Lot 96

A Sapphire, Diamond and White Gold Ballerina Ring

Centering a round sapphire weighing approximately 7.30 carats, framed by baguette-cut diamonds weighing approximately 1.20 carats, in 14k white gold, size 5

With report 1518963499 dated 6 May 2025 from the Gemological Institute of America stating natural sapphire. Geographic origin: Sri Lanka. Treatment: No indications of heating.

Estimate: $10,000-14,000 CAD

Lot 471

A Fine Emerald, Diamond and White Gold Pendant

Featuring an emerald-cut emerald weighing approximately 31.00 carats, decorated with pear-shaped, oval, marquise-cut, round, and baguette-cut diamonds weighing approximately 11.50 carats, in 18k white gold

With copy of report 2436730619 dated 27 June 2022 from the Gemological Institute of America stating natural emerald. Geographic origin: Colombia. Minor clarity enhancement.

Estimate: $80,000-100,000 CAD

Lot 90

An Emerald, Diamond and Platinum Ring, Birks

Set with an emerald-cut emerald weighing approximately 3.30 carats, and round diamonds weighing approximately 1.80 carats, signed Birks, in platinum, size approximately 4 3/4

With report 7511953289 dated 6 May 2025 from the Gemological Institute of America stating natural emerald. Geographic origin: Colombia. Treatment: No indications of clarity enhancement.

Estimate: $5,000-7,000 CAD