Item specifics: Style Gemstone Jewelry Thickness -- Pendant Size Height: 15.6 MM(0.61INCH) , Width: 17.6 MM(0.69INCH) , Big Birthstone: 3.0MM(0.118INCH) , Small Birthstone: 1.0MM(0.039INCH)/1.3MM(0.052INCH) Perimeter Of Bracelet -- Material 18k Gold Plated Silver Genuine Gemstone:   Zircon Stone: Expressing your never-ending love with this delicate double heart necklace, symbolizing togetherness and complete unity. You can choose a precious birthstone crafted in the center, perfectly match with your wisdom and elegance in any outfit. Ideal for any special occasions (e.g. Birthday, Christmas, Valentine's Day).