In 2006 when I got engaged, my wife’s engagement ring was the most expensive thing I had ever purchased.

My wife was clearly the best investment of my life.
Although her ring 💍
2006 vs. 2026 price per carrot is essentially flat to slightly down over the 20 years, which is a remarkably poor return for an illiquid asset.​​​​​​​​​​​​​​​​