Ring – Princess-Cut Diamond Solitaire
A single stone ring featuring one white gold rub-over set princess-cut diamond arranged ‘north/south’ to a bevelled yellow gold ring shank, entirely constructed from 18ct gold.
Assessment of the Diamond.
Measuring: 2.60mm x 2.60mm x 1.88mm.
Calculated weight: 0.10cts.
Details of the Setting.
Hallmarked: 18ct gold, Birmingham Convention mark.
Sponsor’s mark: ‘CJ’ (centre jewellery).
Finger size: M.
¹. A princess-cut diamond is a mixed-cut facet design used for diamonds, typically square, or a slightly rectangular outline. Although not patented or standardised, they are several commonly encountered facet designs used for princess-cuts, all of which share the common features of a stepped scissor-cut crown, and a pointed culet. “Developed in the 1970s the princess-cut is relatively new among the fancy shapes. Its most distinction feature is that it preserves the natural square of the octahedral crystal. This natural shape would be lost if the rough were polished as a round” (Yasukazu Suwa and Andrew Coxon, ‘Diamonds, Rough to Romance’, 2009). “Like the radiant, it is a combination of a brilliant and step cut, so that it is cut as a square or truncated carré, depending on the basic shape of the rough material. If the cube surface of the octahedron is maintained, a square cut with sharp edges is formed. In general, the princess cut has a very good fire and a high degree of brilliance, which explains why it has gained wide acceptance on the diamond market” (Verena Pagel-Theisen, ‘Diamond Grading ABC The Manual’, ninth edition, 2001).