Continuity mistake: The short-haired brunette wannabe Lab Tech has a disappearing and reappearing necklace during her conversation in the lab with Warrick.
Revealing mistake: As the phone number 702-555-0192 is supposedly dialed, you can hear in the sound overlay that the last two digits dialed on the touchtone keypad were the same two digits. Then it shows a close-up of the cell phone dialing the above number.
Answer: The episode on CSI:NY was called "Love Runs Cold" and first aired on October 4, 2006 (Season 3, Episode 3) and involves the investigation of a model found stabbed to death by an ice dagger.
OneHappyHusky