This is a link chain necklace with a sapphire pendant. The pendant is made of many small moissanite stones surrounding a large centerpiece of sapphire, creating a dazzling halo effect. It is very beautiful and suitable for formal occasions such as weddings or banquets. Metal: 18k gold on s925 sterling silvernecklace length: 18 inches 3 inches extension stonemain stone type: sapphireshape: roundcolor: royal bluemain stone measurement: 8mm x 8mm