Why Every Serious Collector Is Quietly Moving Into Old-Mine Portuguese Cuts in 2025
The modern brilliant cut was designed for one thing: maximum sparkle under electric light. The Old-Mine Portuguese cut was designed for candlelight, firelight, and daylight – and it has never been surpassed. In 2024–2025 we are witnessing the fastest appreciation of any diamond category in the past twenty years: hand-cut, pre-1950s Portuguese and old-mine fancies….