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Lot n° 640

A ring Gold 800/000 Set with round cut sapphire,...

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A ring Gold 800/000 Set with round cut sapphire, 1 oval cut sapphire of approximately 6,20 ct. and 80 brilliant cut diamonds totalling approximately 1 ct. France Later Lisbon hallmark (1985-2020) and goldsmith's mark Ourivesaria Diadema Lda. (regd. 1974) (signs of wear) Med. 7 (EU) 16,2 g Literature: VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Marcas de Contrastes e Ourives Portugueses (século XV a 1887)", vol. II, IN-CM, no. 4092 and 4323.