4.27 carat marquise-cut Fancy grey diamond engagement ring

EDITOR'S REVIEW

- Diamond expert De Beers specialises in exceptional, rare and hard-to-find diamonds
- 4.27 carat marquise-cut diamond in an incredibly rare Fancy grey colour, with subtle flashes of blue
- Flanked by two pear-cut  white diamonds
- Diamonds set in white gold

*The price of this ring is €665,000