ElegantSwiss

[AMV2020]

Hello,
I am a relatively new user here. I have been scouting for a 29 or 31mm 2-Tone DateJust for my wife. I found a watch she would like on ElegantSwiss.
Has anyone dealt with ElegantSwiss? Are they legit with a good reputation?

Rolex Datejust 2-Tone 18K Gold/SS Midsize 31mm Womens Watch w/Caribbean Blue Diamond Dial & 2.25Ct Bezel $6290

The diamonds are aftermarket. How much would something like be worth. Is the price too high?
Can I get a similar watch with Rolex parts for about the same price?

Any comments or recommendations are welcome.

thanks,
AMV2020