Iceberg Let's talk serious statement pieces. In the Iceberg collection, an octahedron rough diamond surfaces from a sea of pavé diamonds with a show stopping effect. The most popular collection with our celebrity clientele, Iceberg pairs equally well with skinny jeans and a leather jacket as it does with a black tie gown. Instant fabulous with an edge. Iceberg ring featuring one 7.52ct octahedron rough diamond accented with 2.26cts of pavé diamonds in 18k white gold.