18k Gold PVD Stainless Steel Cubic Zirconia Sunburst Heart Ring size #6. Crafted from high qualify , non-tarnish stainless steel, this heart-shaped ring features sun rays surrounding a sparkling cubic zirconia stone at its center. Designed everyday wear, lasting beauty without discoloration or skin irritation. Surgiral grade stainless steel, free nickel, hypoallergenic.