Gold necklace_expensive but quality

I like the quality of the piece. For the first few days I had it, my skin seemed to have a reaction. It turned red and blotchy where the necklace was touching my skin, but a few weeks later and it's gone away. The only issue is I'd love for this necklace to be a bit shorter. I use the extra ring to make it shorter, but it always slips to the front. However, great chain.