Uneek Oval Diamond Halo Engagement Ring with High Polish Silhouette Double ShankOval cut diamond halo engagement ring, designed to fit a 7. 5 x 5. 5 mm center, carrying a total of 32 round brilliants (combined weight of approximately 0. 18 carats) pave set along halo; no diamonds on the "Silhouette" double shank, just gold, old fashioned high polish goodness, which really accentuates its unique shape; from Uneek's Silhouette Collection.