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Lot 624. A 7.05 carats Mozambique ruby and diamond ring. Estimate HK$ 1,400,000 - 2,000,000 (€ 150,000 - 220,000). Photo: Bonhams.

Set with a cushion-shaped ruby, weighing 7.05 carats, within a pear and round brilliant-cut diamond surround, extended to the bifurcated half hoop; estimated total diamond weight 4.20 carats; mounted in 18k white gold; size 5½

Accompanied by Gübelin report #20081219, dated 2 September 2020, stating that the natural ruby has no indications of heat treatment and originates from Mozambique. Also, with two information sheets stating that large unheated rubies of gem-quality are rarely found in nature, and the supply of these types of rubies remain highly limited, from Msawizi area of Niassa Province or Montepuez in the Cabo Delgado Province.

Accompanied by GRS report #GRS2014-075084, dated 23 July 2014, stating that the natural ruby has no indications of heat treatment and originates from Mozambique.

Bonhams. Hong Kong Jewels and Jadeite, Hong Kong, 28 November 2020