Thanks for the responses. So because the $40 stylus would not fit does that mean they are junk and a more "expensive" one will fit?
Indeed, there are many diamonds sold for Empire cells, and I recommend looking for them on well-known sites specializing in the sale of diamonds. You have to be wary of everything else that may be offered on various other sites. Then, it's not necessarily a question of price, for example I found a Zafira brand diamond, a replica of what Empire did, but without the logo, with a sound quality equivalent to the OEM, and for only 30 euros. Then, I also found new OEM diamonds, for reasonable prices, but they are very rare and you have to be wary of storage conditions, which can alter their initial qualities. I was very lucky, it was an old stock from a bought store. Finally, Tonar for example also makes good diamonds, a little less qualitative than the original, but which give good results (sometimes a little sibilance, so you have to play with the pressure of follow-up).
There are also beautiful manufactures of Vivid Line diamonds, which give results equivalent to the OEM, or even Shibata, but the prices are no longer the same! A Tonar diamond is traded at around 65 euros, the OEM normally around 200 euros, as is the Shibata, a little less for the Vivid Line. For example, I bought my two OEM diamonds for less than the price of a Shibata, and a little more than a Vivid Line, I think I got a very good deal. I put you the link for an OEM diamond for Empire 2000 E, it's the same stock as the two OEMs of Empire, so very well preserved!
After that, it's up to you to see what you want to put on, knowing that coming across a new old stock diamond today is like looking for a needle in a haystack, and then again! An alternative solution like a Tonar (I have two in stock) can give you complete satisfaction, especially if you've never listened to an Empire cartridge with an OEM stylus (that's when it's nirvana!)