A sapphire and diamond halo ring, comprises a strongly dichroic sapphire in oval-cut, encircled in a frame of single-cut diamonds, collet set in a white metal mount with millgrain details, rose-cut embellishment on trumpeted shoulders, to tapered court-profile shank, ring size P, ring head measures 9.6 x 7.8 mm, total weight of item 2.7 grams.