11.70 ct Sapphire Halo Vintage Diamond Ring
 
Metal type: 18K White gold
Weight:  12.76 gram

Main stone: 
Natural Blue Sapphire 
Certificate: GRS2019-088756
No indication of thermal treatment
Origin: Sri-Lanka (Ceylon)
Shape: Cushion
Weight: 11.70 ct
Dimensions  15.56x12.04x6.68mm

Side stones:
Natural Diamonds
  Shape: Round cut, Pear cut 
  Weight: 1.97 ct
  Color/Clarity: F/VS1
  Cut: Excellent