Thanks for visiting KINRADEN. At KINRADEN collections are brought to life using only recycled 18K gold and sterling silver, sourced from suppliers specialising in recovering precious metals from the tech industry. Experimenting with new materials, selected styles combine gold and silver with excess Mpingo wood from the production of woodwind instruments. Also known as African blackwood, Mpingo is one of the hardest and densest woods available – allowing it to be cut into soft-surfaced diamond shapes.