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An 18k gold ring with an Andamooka opal - image-1

An 18k gold ring with an Andamooka opal - image-2

An 18k gold ring with an Andamooka opal

Curved shank with an oval bombé-form bezel set with an oval shaped Andamooka opal (ca. 15.57 x 9.19 mm). Hallmarks: Fineness 750, maker's mark "PHM" (conjoined). Bezel 2.4 x 2 cm. Ring size 53. Weight 15.52 g.
Peter und Marianne Heyden, Cologne, presumably 1950s.

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Lot 120 Dα

An 18k gold ring with an Andamooka opal