14th-17th Century The highly attractive translucent stone superbly carved as a shallow petal-form dish with four delicately pointed petals at the cardinal points with each lobe meticulously polished to form delicate ribs on the interior sides where the petals meet, the exterior similarly treated and ending at a quatrefoil-shaped foot mirroring the rim, attractive circular and striated bands throughout the stone; with a fitted box. 8 1/4in (20.9cm) across