A diamond solitaire ring

A diamond solitaire ring, the marquise cut stone four claw set in an 18 carat white gold single stone mount, hallmarked London 1977, approximate weight of diamond 0.90 carat, ring size O.
Sold for £800

A diamond solitaire ring, the marquise cut stone four claw set in an 18 carat white gold single stone mount, hallmarked London 1977, approximate weight of diamond 0.90 carat, ring size O.

Condition report:
We do not have control stones to grade the diamond, in our opinion it would fall into the brackets of Colour - L-N, Clarity SI1-SI2.