It also featured a deep pavilion and a big pointed bottom called culet. The brilliant cut diamond came to the market during the 1940s and changed the diamond trade. Since then, diamond advertisements have been centered on the durability and desirability aspects of the gemstone. Did you know brilliant cut diamonds are considered more desirable than old mine cut gemstones? Even interesting is that although the big culet makes a dark spot in the centre of the gemstone, an old mine cut diamond still holds high value owing to its rarity. Note that since there are not many facets in an old mine cut diamond, less light refracts through it. However, when you contrast this with a brilliant cut diamond featuring more number of facets and smaller cutlet, the gemstone gives more shine. An old mine cut diamond ring will not have as much shine as a vintage-inspired counterpart featuring the traditional brilliant cut. Still, you have plenty of reasons for buying old mine cut diamond rings.