Art Deco 1920s 0.25ct Diamond Platinum 18ct Gold RingDiamonds symbolise innocence and love, they are the birthstone of April. Our 1920s Art Deco ring features a bright round 0. 25ct diamond. This exquisite diamond is set in 18ct white gold and platinum. The stone has four smaller diamonds either side in a traditional geometric stepped pattern associated with this period of design. The Art Deco era valued simpler designs which allowed the stones to be the centre of attention in the newly popularised