According to this May 30 Bloomberg article:

… The Corcoran Group agent has listed a three-bedroom condo there for $2 million, the highest price ever sought — or paid — for a residence on the island, once home to a smallpox hospital and now bustling with construction of a new Cornell University campus.

With three-bedroom apartments in Manhattan selling for a median of $3.15 million, Garama says his potentially record-setting price is a bargain for homebuyers hunting for more space and who might consider the island over the more traditional alternatives of Queens and Brooklyn….

The $2 million apartment ($1395 per sq ft) is located in Riverwalk Court, 415 Main Street. Real Estate web site Streeteasy reports of several million dollar plus apartments for sale at Roosevelt Island’s Riverwalk , Rivercross and Island House buildings including: Streeteasy currently lists two apartment for sale less than $1 Million: Streeteasy lists Roosevelt Island monthly rental prices ranging from $5950 for a 3 bedroom Manhattan Park apartment to $1960 for a Roosevelt Landings studio apartment There is a growing concern among many current Roosevelt Island residents that they will soon be priced out of their homes.