Diamond gold flower ring and earrings

18k white gold.
N. 1 round brilliant cut diamond ca. 1.20 ct, H, SI.
N. 1 round brilliant cut diamond ca. 0.66 ct, H, SI.
N. 1 round brilliant cut diamond ca. 0.65 ct, H, SI.
N. 40 round brilliant cut diamonds ca. 6.00 ct, G-H, VS-SI.
IT ring size 10 - US size 5.5.
Total weight 17.9 g.
Item condition grading: **** good.