Lab Grown Round Diamond Trilogy Ring with Pear Shape Diamonds in PlatinumThis classic three stone ring features a round lab grown diamond as the central stone, with carefully selected pear shaped diamonds as side stones. You can select from a 1. 00 carat up to 3. 00 carat centre diamond. This engagement ring is made in platinum 950, though it can also be made in 18 carat yellow or rose gold on request. Book an appointment to visit us in Hatton Garden, London and try on this vintage design laboratory grown diamond ring or