This is a preowned ring in excellent condition. The large rectangular shaped main stone tests positive for aquamarine. The halo of clear stones around the stone    tests positive for white topaz and the corner baguettes test as white sapphire. The baguettes on the band  are also topaz. This is a stunning ring! The top of the ring  is 1 inch from front to back. The stones are prong set. The setting is filigree and will sit appox 3/8" tall on the finger. The setting is finished underneath the stones.