While similar in shape as the old mine cut is considered the antique predecessor to the cushion cut, there are a few key differences.
- Rarity: Old mine cut diamonds are rarer and considered antique, making them a sought-after choice for vintage jewelry enthusiasts, while cushion diamonds are readily available.
- Facets: Old Mine-cut diamonds have fewer facets, and larger irregularly shaped facets that give them a more antique and less brilliant appearance. Cushions incorporate a mix of step-cut and brilliant-cut facets which enhance their brilliance and clarity.