Explore the complete collection of diamond necklaces from SARAH & SEBASTIAN and invest in timeless pieces with refined silhouettes that can be dressed up or down for any occasion.Available in 10-karat, 14-karat or 18-karat white and yellow gold necklaces in this collection range from bold statement pendants to dainty diamond chains. Our diamond necklaces layer effortlessly with other pieces from the SARAH & SEBASTIAN jewellery collection including diamond earrings and diamond bracelets. All of our diamonds are ethically sourced and GIA-certified. You can read more about our diamond guide here.