Thank god for Yelp! I was in Las Vegas and desperately needed a mani and pedi. I have been the spas in the hotel for mani/pedi and even though you pay an arm and a leg, I have never been wow'd by their manicures or pedicures. They are not awful but just not worth the money you pay for them.
So I decided to check out Yelp and the reviews for Diamond Nails & Spa looked good so I thought I would try them out. I was disappointed at all and totally worth the cab ride out there from my hotel on the strip. They talked me into getting the gel manicure and I am so glad they did. It looked fabulous and FINALLY a manicure that doesn't chip as soon as you sneeze the wrong way... I am a total believer in the gel manicure now and wish this place was in my home town so I could be a regular.
If in Vegas, this is the place to go for mani/pedi. Call ahead though-it does get busy but it seems they always find a way to squeeze you in.