Not many jewelry houses have a history as long and storied as Royal Asscher. Its legacy spans 160 years, and the company is renowned for its namesake diamond cut and for cleaving the largest diamond ever discovered. It continues to make news for its contemporary jewelry and an expanding offering of striking pieces in colored gemstones.
The Amsterdam-based firm recruited hometown design talent for its latest collection. Sisters Jetteke and Lieke van Lexmond—a fashion editor and a television personality, respec…