LafayetteLady
Posts: 7683
Joined: 5/2/2007 From: Northern New Jersey Status: offline
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quote:
ORIGINAL: Epytropos Going quick reply here since several have raised the same issue: *short version* Nickel causes that for some people but not all - no way to be sure if your Daddy is going to be one of them without an allergy test or putting the thing on him. *long jewelery-nerd version* The likelihood is that the people leaving reviews are experiencing a nickel allergy - nickel is a common alloying material for all jewelery, and will appear in virtually all gold (24 carat gold being 95% gold) and most silver and platinum (the highest grade platinum typically used in jewelery being PT95, again 95% pure). Larger concentrations, naturally, have a higher instance of allergic response and indicate a lower purity, which is to say quality, of precious metal. That said, there is no ring which has enough nickel in it to guarantee that response - the reviewers just all happen to have the allergy. Many could coat themselves in the stuff and never experience that reaction. It does bear mention, in defense of the OPs jeweler, that there is such a thing as an allergy to both silver and gold. In fact, of metals commonly used (gold, silver, platinum, nickel, cadmium, etc.) the only one which has no recorded instances of allergic responses is titanium. This is why it's used in surgical implants and part of why it is gaining traction in the jewelery market, especially for men. However, this is almost certainly not that as a discoloration response as described is highly unlikely - almost always it will take the form of dermatitis, a reddening and swelling of the skin, blisters, or itching. I have had "pure" sterling jewelry and had it turn my finger green. Hadn't nothing to do with the quality of the ring. I have also had cheap gold plated rings as a kid that turned my finger green. I don't wear sterling silver or cheap gold. I also can't wear digital watches, they stop working on my wrist. Also didn't matter about the cost.
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