Lightly brushed open circle sterling silver, finished with sterling silver french wire backings. Philippa Roberts Jewelry has been handmade in Oakland, CA studio for over 20 years. Her clean lines, use of colorful stones, and timeless, classic style has stayed true throughout her years in business. “I love to hear from customers that my pieces are their favorite everyday jewelry, or they have been wearing one of my pieces for the past ten years.” Measures 1 x .75 in.