BLUE SAPPHIRE RING / DIAMOND / UK / K20 / #12

This is a beautiful blue sapphire ring that I purchased in the UK.
It is surrounded by diamonds.

【material】
20K Yellow Gold (20KYG)
BLUE SAPPHIRE
DIAMOND

【size】
Top length 12mm x width 10mm x thickness 6mm
Side ring width 2mm x thickness 1mm

[Age]
1800s