9 carat white gold blue topaz and diamond ring a beautiful ladies polished white gold ring featuring a hand cut blue topaz gemstone in the centre of the ring with single cut diamonds on the shoulder of the white gold ring band to complete this ring designa diamond is the birthstone for the month of april zodiac stone for aries 21st march 20th april given as the 10th 60th and 75th wedding anniversary stoneblue topaz information birthstone november zodiac sagittarius wedding anniver