This unique 14 karat white gold 7. Benchmark has been manufacturing designer wedding rings in gold, platinum and palladium for over 40 years. Made in the USA using 100% recycled materials you can feel good about choosing Benchmark wedding bands.5mm comfort-fit satin finish carved wedding band features a concave design with a high polished round edge that exemplifies remarkable style. Benchmark has been manufacturing designer wedding rings in gold, platinum and palladium for over 40 years. Made in the USA using 100% recycled materials you can feel good about choosing Benchmark wedding bands.