Hallmark Jewelry "Stories & Relationships" Sterling Silver Diamond Heart Necklace, 18" + 2" Extender Our sweet and charming Sterling Silver and diamond heart pendant necklace is a sparkling way to say I love you. Surprise a special mom, daughter, grandma, granddaughter, sister, girlfriend or wife with treasured jewelry for her. A necklace makes a lovely wedding anniversary gift, bridesmaid gift, Valentine's Day or Christmas gift idea, birthday gift, or "just because" gift for someone you love. Hallmark jewelry is the perfect way to share your heart with the people you love, and connect in the ways that matter most. Heartfelt jewelry for you and the people you love. Hallmark jewelry collections are created to be timely, yet timeless  to be well loved, worn often, and shared for generations to come.