One electronically tested 18KT white ladies cast blue sapphire and diamond ring. The featured sapphire is set within a diamond bezel, supported by diamond set shoulders, completed by a three millimeter wide band. Identified with "750". Trademark is RT. Containing: One prong set heart mixed cut natural blue sapphire, measuring 6.35mm x 7.21mm x 4.54mm, exact weight 1.52ct., clarity is slightly included, type II, medium dark, moderately strong, blue color, (GIA B 6/4), cut is very good. Transmitting light with no distortion, transparent. Naturally occurring internal and external characteristics are present. Graded loose prior to setting in the GIA Laboratory, Report # 2201365117. The report is attached. Eighteen prong set round brilliant and baguette cut diamonds approximate total weight of 18 Stones = 0.40ct. Graded in the setting. Clarity VS1 to SI1 Color G - I Total Weight of Colored Stones 1.52ct. Total Weight of Diamonds 0.40ct. Total Weight of Ring 5.40 gm Size: 6 1/2