An unusual take on the traditional three stone diamond ring having a fine quality step cut diamond as the centre stone with a colour and clarity assessed as F/G and VS/VS2 respectively.  The principal diamond is partnered on each side by a round brilliant cut diamond with G/H colour and SI2 to I1 clarity.  The total diamond weight is estimated at 0.72ct,
 
All diamonds are claw set in white to a white D-shaped cross-sectioned band with shoulders tapering to the setting.  Marked 18ct, and tesing as 18ct white gold.
 
Details
 
1 x rectangular step cut diamond, 0.38ct (calculated)
Assessed VS1/VS2 clarity, F/G colour
 
2 x brilliant cut diamonds, 0.34ct total (estimated)
Assessed SI2/I1 clarity, G/H colour