Acid Mountain Silver pieces are handmade with precious metals and natural stones. Although sometimes a natural occurrence, exposure to liquids, chemicals, cosmetics and natural oils could potentially alter the colour of your stone/tarnish metal, especially silver.
To keep your jewels in good nick, clean the piece with a jewellery polishing cloth and if any, avoid contact with the stones. Cleaning dips/solutions (although a common solution) are harsh and can potentially remove patinas and may not be suitable for certain gemstones so please avoid. 
If for any reason your piece becomes damaged, even if it is your fault, please get in touch! I want you to enjoy a lifetime of wearing, and as long as it's possible I will repair/re-polish your piece of jewellery to its former glory. Some charges may apply depending on the circumstance, eg replacement of cracked stones, chains etc, but email me and I'll sort it for you.