Cluster Ring

LUCERA
Diamond Cluster Ring

Cluster ring is a ring with a group of stones in a cluster setting, which forms the focal point of the whole ring.
 http://madaboutdiamonds.com/diamond-cluster-rings/lucera-diamond-cluster-ring

Vintage 3.0CTW Diamond Cluster Ring Solid 18K Gold

http://eragem.com/vintage-3-0ctw-diamond-cluster-ring-solid-18k-gold.html