A 5mm round, white cubic zirconia appears to be suspended in the 9ct white gold setting. Made in the UK.
9ct White Gold Cubic Zirconia Trilogy Ring - R6524-S
9ct White Gold Cubic Zirconia Twist Cluster Ring - R6533-N
9ct White Gold Cubic Zirconia Three Stone Ring - R6558-U
9ct White Gold Cubic Zirconia Crossover Ring - EXCLUSIVE - R5928-U
9ct White Gold Cubic Zirconia Ring - EXCLUSIVE - R6566-T
9ct White Gold Cubic Zirconia Single Earring - 5mm - G3401