Does a halo make a diamond more expensive?

A halo head usually runs a few hundred to about a thousand dollars more than a comparable plain solitaire in the same metal. The premium covers extra precious metal in the halo, the 30 to 50 melee diamonds set around the centre and several hours of bench setting under a microscope. Commercial to fine-grade melee runs roughly AU$500 to AU$1,500 per carat in 2026, so the stones themselves add only a couple of hundred dollars in total. Most of the price gap is labour, not materials, which is why two halo rings of similar appearance can vary in cost depending on whether the melee was set by hand or pulled from a cast preset.

Where the halo earns its premium back is on the centre. A well-cut 1ct round measures about 6.5mm across the face and reads closer to 8mm or more once a halo is added, which is the visual diameter of a 1.5ct to 2ct solitaire. Because diamond pricing is exponential by size, a 1ct centre in a halo costs significantly less than a 1.5ct or 2ct solitaire in the same grade. For most buyers chasing visible carat size, halo is the cheaper route to a ring that reads as a larger stone, especially under a 1.5ct centre where the size lift is most useful.