< a href="http://www.selfridges.com/GB/en/cat/astley-clarke/jewellery-watches/" style="text-decoration: none"><font color="black"><b>Astley Clarke</b></font></a>&#39;s Astronomy collection by Dominic Jones offers statement pieces that are sure to impress. The <b>Mini Saturn necklace c</b>elebrates the sixth planet in our Solar System with the iridescent rainbow moonstone gemstone, set in 14-carat white gold to emulate the banded appearance. Grey diamonds framed by black rhodium recreates the planet&#39;s iconic ring, while diamonds through the chain represent stars in the sky.