Many things contribute to antique diamonds distinctive nature. Old cut diamonds certainly look different. Collectors of antique cut diamonds describe the sparkle as “soft”. They can be quite calming to look at. This gives the stones a much quieter personality. This can be explained simply with gemological properties explaining the elements of sparkle.
There are two main elements of sparkle. Dispersion and scintillation are the two gemological terms used to describe optical effects in a diamond. Dispersion refers to the breaking up of light into spectral colors. Scintillation is the white light omitted from a stone. Antique diamonds are awash of spectral colors while modern diamonds attempt a balance of white and spectral sparkle.
Who wore these gems? Where had they been? What jewel had they been mounted in? These antique stones have a history although rarely do we know the original owners. This adds to the allure of a diamond being a discreet way of storing, and disposing, of value.