Oversized, tons of sparkle! Our 2.00 ct. t.w. diamond highway ring is fun, chic and everyday-approved. In polished 14kt white gold, multiple… Oversized, tons of sparkle! Our 2.00 ct. t.w. diamond highway ring is fun, chic and everyday-approved. In polished 14kt white gold, multiple bands of baguette and round brilliant-cut diamonds zig and zag, creating a dimensional design that's sure to please. 1/2" wide. Diamond highway ring.