Brooches by Miranda Sharpe Perfect for everyday wear, the petri brooch adds a dash of colour to any outfit. A simple round design of engraved silver, enamelled with a yellow enamel with touches of blue details. The enamel has a matt finish. Fastened with a single stainless steel pin. Features Main Material : silver Other Materials : vitreous enamel Pin Type : pin Dimensions (mm) : 30x30x2 One of a Kind : No Metal : silver Hallmarked : Yes Cleaning InstructionsThe brooch can be cleaned by using warm soapy water and an old toothbrush. A silver polishing cloth can also be used on the silver back of the brooch.