Diamond-essential necklace from MONICA VINADER featuring gold vermeil, diamond, solitaire cut and delicate chain. Every handcrafted Monica Vinader piece comes with a five-year warranty.. Normal everyday use and external agents may reduce the lustre of gemstones and gold surfaces. To maintain, use specific, non-abrasive products specially meant for cleaning jewellery.. Conscious: We've partnered with Good On You – an ethical agency that rates how sustainably brands perform. This item comes from a brand that performs well in relation to their impact on the planet.. Learn more about what makes a product Conscious on our Conscious Criteria page.