Piet Hein Sinus 440P Pendant Opal with White Textile Cord £ 1,531 Delivery in 30–40 days Piet Hein Sinus 550P Pendant Opal with White Textile Cord £ 1,659 Delivery in 30–40 days Piet Hein Sinus 330P Pendant Opal with White Textile Cord £ 1,404 Delivery in 30–40 days