18ct Rose Gold Whitby Jet Diamond Amethyst Flower Heart Necklace. P3074. This stunning pendant has been created using the finest hand crafted Whitby Jet. The Whitby Jet heart is framed within 18ct Rose Gold and features a beautiful Amethyst flower motif. Each individual teardrop shaped petal has been expertly mounted inside the flower design, with a sparkling 0.01ct central Diamond completing this eye catching and individual floral piece. A beautiful gift for any occasion. This item is supplied complete with an 18 inch Rose Gold Chain. All our Whitby Jet jewellery is designed and crafted within our very own workshops in Derbyshire where a team of skilled craftsmen transform the natural Jet into these stunning pieces of jewellery. You can find other matching Whitby Jet jewellery and other Whitby Jet necklaces on our website. 18ct Rose Gold Whitby Jet Diamond Amethyst Flower Heart Necklace. Dimensions: 19mm x 20mm, plus 5mm bail.