Shop Bespoke engagement Rings18ct Cognac diamond engagement ring 18ct Cognac diamond engagement ring CONTACT This was a very special ring to make for a number of lovely reasons! It was planned as a surprise, using cognac and pear shaped diamonds, the couple flew away to get engaged so it had to be ready for a flight that could not change! Also, the bride has very petite fingers so everything was in miniture - so beautiful and very special.