194
Oscar Heyman
An Unheated Yellow Sapphire, Ruby, and Diamond Ring
Centering upon a cushion-cut yellow sapphire weighing approximately 17.33 carats, framed by a rectangular-cut ruby border, enhanced by collet-set diamonds, mounted in platinum, size 7 1/2.
Stamped no.SKS37400, accompanied by a letter of authenticity
With report no.6173085567 dated 9 April 2105 from the Gemological Institute of America stating that the yellow sapphire is natural with no indications of heating
With report no.6173085567 dated 9 April 2105 from the Gemological Institute of America stating that the yellow sapphire is natural with no indications of heating