The centrepiece of each Grau pendant is a circle of onyx, a deep black semi-precious stone with a polished sheen that evokes the depths of the cosmos. This gemstone is attributed with a meaning of protection, power and self-control, qualities that add to the celestial glow of the 8 diamonds that surround it. The Halo collection is part of the rich jewellery tradition of Joyería Grau, a Spanish firm with more than 70 years of tradition. Each piece in this collection is crafted with meticulous attention to detail and the highest standards of quality, guaranteeing a long-lasting and timeless piece of jewellery.