The first range of brooches is cast in Sterling silver (some items are available in 9ct gold and this is indicated in the adjoining text when it is an option). The text contains details of the sizes that are available in the different styles. The carved pieces will vary according to the availability of the raw material and this range will be constantly changing as we introduce one-off designs. All our Whitby Jet jewellery comes with a certificate of authenticity and further designs will be found in the 'Victorian' style, Jet combination, and ammonite inlay pages. As with all our work we are happy to discuss any specific requirements, please e-mail us to discuss other options. If there are any items that you are interested in just click the order button, you will be able to delete items and refine your choice later at the checkout page.