One-of-a-kind ring in platinum with an 11.05 ct. no-heat star sapphire and 1.48 cts. t.w. diamonds by Oscar Heyman, $80,000 December 22, 2015 1024 × 686 One-of-a-kind Sapphire Rings One-of-a-kind ring in platinum with an 11.05 ct. no-heat star sapphire and 1.48 cts. t.w. diamonds by Oscar Heyman, $80,000 One-of-a-kind ring in platinum with an 11.05 ct. no-heat star sapphire and 1.48 cts. t.w. diamonds by Oscar Heyman, $80,000