For a truly envy-inducing engagement ring, look no further than Garrard. Established in 1735 the jeweller has certainly had long enough to hone its skills, and the results are stunning. Exclusive to Garrard is the Eternal Cut™ diamond, designed by master cutter Gabi Tolkowsky who is best-known for having fashioned the largest diamond in the world. Instantly recognisable for the petal design at its centre, the diamond reflects light even more brilliantly than other diamonds. The Eternal Cut™ engagement ring (pictured) is not cheap at £52,000, but if you can afford it then rest assured that its beauty will last a lifetime. www.garrard.com