Are three-stone engagement rings timeless?

Three-stone rings became fashionable in Georgian jewellery between 1714 and 1837, when wearing multiple diamonds on a single ring became acceptable and three was the visually balanced default before larger stones were reliably cuttable. The format carried through the Victorian and Edwardian eras and never disappeared. Two modern moments rebuilt its visibility: the De Beers Trilogy campaign in 2001, which gave the design its now-standard past, present, future meaning, and Meghan Markle's 2017 engagement ring from Prince Harry, a 3ct cushion centre flanked by two round stones from Princess Diana's collection. The Markle effect drove a measurable spike in three-stone enquiries that has held into 2026.

The proportions that have aged best are roughly a 1ct centre to 0.5ct side stones, with stones of matching shape and quality, on a clean band in white gold or platinum. That configuration sits at the proportional centre of three-stone design and reads as classic across decades. What dates are the extremes: very small side stones that read as half-hearted accents, or very large side stones that compete with the centre. Side-stone shape also marks the era. Trillion cuts read late 1990s to early 2000s, tapered baguettes read Art Deco or current 2026, and matching round side stones read most classically across all periods.