Are diamonds worth more now than 10 years ago?

Have you been keeping up with the fluctuations in the diamond market over the past decade? I'm curious, are diamonds today considered to hold more value than they did a full ten years ago? With the global economy constantly evolving and consumer preferences shifting, has the demand for diamonds increased or decreased, ultimately influencing their worth in the present day? And what about the supply side - have mining practices and the availability of diamonds changed significantly in the last ten years, potentially impacting their market value?