between baguette cut diamond shoulders, mounted in platinum, signed 'CHAUMET' within, Chaumet workshop mark to back of shank, French assaymark for platinum, accompanied by GIA report no. 6223770879 for the 6.37ct diamond giving the E SI2 grade and the diamond shows no fluorescence Diamond 10.73 x 10.00 x 7.29 Weight: 5.5g
19th century cushion cut diamond cluster ring, c.1880, of rounded outline and centred by a principal square-cushion cut diamond of approximately 5.55ct,