Blue Sapphire and Diamond 0.42cts. Platinum Diamond & Coloured Stone Eternity Ring Design ID: 88-01033-147 Type: Diamond & Coloured Stone Metal: 100% Recycled, Hallmarked Platinum Stone Type: Blue Sapphire and Diamond Diamond Option: Your Choice, New Generation Lab-Grown or Traditionally Mined Diamonds Total Stone Weight (av.): 0.42cts. Stone Shape: Round Brilliant-Cut Setting Style: Tension-Set Certificated Diamonds: Not at this size Width: Narrow i.e 2.2mm. Rows: Single-Row