Art Deco Diamond and sapphire ring

Square, Art Deco diamond and sapphire ring.  The square head is set with a round, Old European cut diamond and four calibre cut sapphires.  The detail work on the ring includes hand chasing and milgrain. 

• Size 5 1/4
• 20 karat
• Weight 3.4 grams
• Band width 1.8mm
• Head size 8.7 x 11mm