720
A diamond "Serpent" ring
Estimate
2.800 - 4.000
Session 2
21 July 2026
Description
Gold, fineness .800
Set with 55 brilliant-cut diamonds weighing approximately 0.16 ct., fancy yellow (green) colour
Porto hallmark (1985-2020), goldsmith's mark of Manuel António da Costa Santos & Filhos Ldª-ARTEJOIA (reg. 1966)
Med.: 12 (EU)
18,3 g
Additional Information
Provenance:
Exhibitions:
Literature:
VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Marcas de Contrastes e Ourives Portugueses (1887 a 1993)", vol. II. Lisbon: IN-CM, no. 4093 and 3990
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