Yellow diamond cluster ring

This stunning cluster features a cushion cut yellow diamond, set in a four claw mount surrounded with a row of round brilliant cut yellow diamonds surrounded with a row of round brilliant cut white diamonds, diamonds also set on the shoulders. All mounted in 18ct white gold. 
The center stone is GIA certificated as:
Carat weight: 1.35ct
Cut: Cushion modified brilliant
Colour: Natural, fancy light yellow, even
Clarity: VS1
Symmetry: Excellent
Polish: Excellent
Fluorescence: None