Phillip Gavriel Sterling Silver 8mm Black Spinel Bead Stretchable Popcorn Bracelet This item is from the Popcorn Collection designed by Phillip Gavriel. The Phillip Gavriel bracelet is made of sterling silver properly stamped and marked. The bracelet is silver in color. The thickness of the bracelet is 4.5 mm. The width of the bead is 8 mm. The bracelet has a 1 year warranty and a 30 days money back guarantee.