u/DisastrousLayer2664

I will be traveling to Japan (the big three cities) in about a month, and am looking to buy a sterling silver or gold (10k) necklace/chain, with an upper budget of ~120,000 JPY. Which stores would be best for this?

Places I have on my list right now are:

• Avalanche in Shibuya
• Bloody Mary in Shibuya
• Roaming random stores in Okachimachi

If I was planning on buying secondhand, should I be concerned about authenticity? I understand that for designer clothing/bags/etc., Japan is pretty strict when it comes to replicas, but don't know if that is the case for jewelry as well.

Any recommendations would be greatly appreciated!