18ct white gold, 11.25cts diamond graduated Demi-riviere necklace. Front section consists of a 17 cm graduated row of thirty seven x round brilliant cut diamonds where each are claw set in a four-pillar and double bezel setting, and are hinged together, in 5.0 mm- 3.4 mm in width. Concealed box clasp & safety catch. One x .55ct G SI2 clarity diamond is in centre, flanked by ten x diamonds = 4.30cts, F - G colour, SI1-2 clarity, then followed by sixteen x diamonds = 4.65cts, F - G colour, SI1-SI2 clarity, then ten x diamonds = 1.75cts, F - G colour, SI1-2 clarity. Finished weight 30.90gms.