9ct yellow gold 077ct blue sapphire diamond cluster ring9ct yellow gold ring with a pear cut blue sapphire gemstone circled in single cut white diamondsblue sapphire informationnumber of stones 1carat weight 077ctstone shape pearbirthstone september zodiac taurus wedding anniversaries 5th 45th and 70th diamond informationnumber of stones 17carat weight0102ctbirthstone april zodiac aries wedding anniversaries 10th 60th and 75th