Demi-fine jewellery is highly-priced jewellery produced of precious metals including gold, platinum, and silver. Both common techniques are rhodium plating (plating rhodium over precious metal to prevent corrosion and scratching) and Vermeil (plating solid gold over high-quality silver). Demi-fine jewellery has an attractive unique selling proposition since the inclusion of precious metals continues to raise its identity without continuing to increase its own price.