Gemondo offers both gold and sterling silver gemstone jewelry. For gold jewelry, there is no tarnish, discoloration and allergy. For silver jewelry, the surface is plated with gold or rhodium to protect silver from being exposed to the air which are key causes to scratch and tarnish. We recommend customer to avoid contact with chemical substances such as perfumes, alcohols or sweats. Regularly clean your jewelry after wearing, dry with soft cloth, and keep in airtight box or container.