Gold Tone Mini Blue Birthday Crystal Gold Tone Heart Mom Affirmation Ring Necklace. Birthday Crystal Heart is approximately 0.24 x 0.25 x 0.11 inches (HxWxD) not including loop. Back is smooth and rounded. Silver tone 2mm Belcher Chain Necklace is approx. 23 Inches with a Lobster Claw Clasp. Affirmation Ring is approx. 0.86 x 0.86 x 0.05 (HxWxD). This inspirational piece of jewelry is very meaningful. Its circular shape is symbolic for endless belief in the message that is imprinted around the ring. These are motivational or sentimental messages to the wearer. Makes a great gift for Birthdays! PLEASE NOTE: Our products are lead safe, but are not intended for children 14 years and younger.