A Chinese site, registered in Panama, which makes little effort to avoid looking cheap but will still fool the unwary, even with descriptions like this one:
"The most popular forms come in tiffany cuff links. This charm Tiffany jewelry 1837 Cufflinks maintain its everlasting gleam as a fashionable piece of charms tattered by many. For many, their make group only isn't complete lacking some form of the remarkable necessary accessories. Tiffany cuff links wearer to definite their single personality. In particular, custom handcrafted tiffany cuff links stack-created ornaments any day simply because of their timeless charm and innate meanings."
I reckon around twenty grammatical and spelling mistakes in there, at least. Not bad for only one paragraph. Testimonials are about the same, and obviously phony.
You should also know, that according to the Tiffany company at least 80% of the so-called Tiffany jewelry online is fake. Which makes it one of the most dangerous product lines to purchase, unless you do your homework and use some commonsense.
Never buy from a site with no mailing address or telephone number, for a start, regardless of what the product is, and avoid anything with "Engrish" language anywhere. There are hundreds of sites, you don't have to deal with anything that looks even remotely doubtful.
If you're looking at allegedly-designer brand items and you see them in conjunction with phrases such as "super discounted" or "very cheap", they're 99.99% certain to be phony. Designer brands don't DO super cheap discounts. They wouldn't be designer brands if they did.
Now, just look at it. Ask yourself if this is a company that truly stocks tens of thousands of dollars' worth of Tiffany watches and jewelry. Does it look professional enough to match that claim? Or do parts of it not work properly, or appear incompleted? If there is anything amateur about it, it's fake.
Lastly, if a site like this also asks you to create a free account before purchasing, approach it with caution. I recommend that if you've got this far, you first create a phony account with garbage names and numbers. That should take you through to the checkout, and when you get to the page which asks for your credit card details look to see if that page has an "https://" at the start of the address, which should also have a blue or green bar to the left with the name of the site superimposed in white lettering. Finally there must be a gold-colored padlock image somewhere at the bottom right of your browser's bottom toolbar. All these things are required for a page to be secure. If it isn't, then don't transmit your credit card information and walk quickly away in the opposite direction instead.
This is a cheap site knocked up from a template and filled with either original Engrish text or stuff copied from other sites. It doesn't really attempt to deceive other than to not bother to mention that the products are replicas. But it's easy for me to see the shabbiness of it, I'm used to looking at these and saying "oh no, another Chinese wholesaler" or somewhat stronger words to that effect, and I have a more critical eye born of experience. It might look good to you.
If it looks good to you, and you're planning on spending money online, you really need to be extremely careful. Look more closely. Trust nothing you see. Even the photos of the products themselves are likely to be faked or copied from legitimate sites. Take away anything that might be fake or copied from elsewhere, and see what's left. There are thousands and thousands of these sites. Don't get caught by one of them.