20 septembre 2018
A padparadscha sapphire and diamond ring, Oscar Heyman
Lot 40. A Ceylon padparadscha sapphire and diamond ring, Oscar Heyman. Estimate US$ 60,000 - 80,000 ( € 51,000 - 69,000) . Unsold. © Bonhams 2001-2018 centering an oval-shaped modified mixed-cut padparadscha sapphire, weighing 6.43 carats, within an oval-shaped...