From Linjer’s website: A pear-shaped white topaz solitaire ring (6x4mm) on a gold band Recycled Gold & Silver We use 100% recycled sterling silver and gold. Gold Vermeil This piece is true gold vermeil. It has recycled 925 silver at its core and is plated in a thick layer of gold measuring 2.5-3.0 microns. This is 5 times thicker and longer-lasting than regular "gold-plated" jewelry, and 100 times thicker than flash-plated jewelry. We use an elegant 14k hue that’s just the right tone of gold. Natural Gemstones We use only ethically sourced, hand-cut gemstones. Beautiful and responsible!