Heart Shaped Sapphire Dainty Jewellery Set in solid sterling silver. Material: Sterling Silver. Total metal weight: 7.82 gr. Heart shaped sapphire (5 x 5 mm) = 2.5 ct total. Colour: Blue. Stone cut: Heart Shaped. Occasion: Wedding, Mother's Day. Anniversary: 5th Anniversary, 45th Anniversary. Birthstone: September.