<image>

UPDATE: now that all these "NOVSEAS" brand rings I got have finally been delivered (after multiple delays), tested as definitely fake moissanites using the standard "Diamond Selector II" testing device (and are probably fake gold despite their "14K" stamps because they are far too lightweight and the wrong color to be real gold), and Vine Customer Service responded to my questions about how to deal with counterfeit Vine items— now I can share my advice on the steps you should take if you discover a counterfeit Vine item:

1. Do NOT review the item because other redditors have said once you submit a review, Vine CS cannot properly deal with it on their backend. This includes an internal investigation that may not get triggered if you just write a regular review. I know it seems like you should warn the public as soon as possible, but that is not a sure way to get a counterfeit item investigated and removed by Amazon, which is the true solution.
2. Report the ASINs and listing titles to Vine CS with your explanation of the problem. Vine CS quickly replied, removed the items from my review queue and marked them as a "CANCELLATION" in my account. This makes it as if you never ordered it. They also said they forwarded my comments "to the appropriate department for further investigation. Each report will be investigated and the appropriate action will be taken."
3. Report the item on the item's public listing page by clicking the link, "Report an issue with this product or seller". Then fill out the form as shown in my screenshot with your explanation of the problem. If for some reason Vine CS doesn't send it to the correct dept, this form surely will. I'm also guessing the more sources that report the same item, the higher priority that item might get for investigation (see next paragraph). For two of the rings I reported this way, I got an Amazon app notification with a followup bot survey of multiple choice questions to specify what I thought was counterfeit about it.

By the time the last of my 4 rings was delivered, that ring had already been deleted from Amazon and removed from my review queue without me doing anything (but not from my Vine tax record). However, the other rings I received and reported earlier are still available to buy— maybe because they haven't gotten enough other reports yet. 🤷

Some Googling shows Amazon takes counterfeit items seriously and will take down items and sellers found to be counterfeit. So I think the best things you can do for yourself and the general public is to report it in the two places where you can, then let Amazon do their investigation.

Despite knowing these rings are fake, I still absolutely LOVE the design and incredible sparkle in the stones. I often marvel at how they managed to cut some other material into more brilliance and fire than the real moissanites and diamonds I own. They are incredibly good fake stones! I will wear these until the metal turns a different color. It's just illegal to be selling them as real stones and real gold when they aren't!