925 Sterling Silver Womens White Blue Turquoise-Tone Simulated Opal Yin and Yang Pendant Necklace "Green Yin Yang Pendant" by My Daily Styles Material: .925 Sterling Silver Charm Dimensions: 0.50in (diameter) x 0.80in (max. height) Chain Length: Adjustable (16.00in - 18.00in) Weight: 2.9 grams All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.