Solitaire Engagement Rings

What makes it a solitaire

A solitaire is any ring with a single stone. That's it. No side stones, no halo, no pavé on the band — just one diamond (or gemstone) on a plain band. The name comes from the French word for “alone.”

This simplicity is exactly why solitaires have dominated the engagement ring market for over a century. When you strip away everything else, the diamond becomes the entire story. Every facet, every flash of light, every angle gets your full attention.

For buyers, solitaires also have a practical advantage: your entire budget goes into one stone and one band. No money split across accent diamonds or complicated settings. That means a bigger, better-quality centre diamond for the same spend compared to most other styles.

Setting types

The setting is how the diamond is held onto the band. It affects how the ring looks on your finger, how secure the diamond is, and how easy the ring is to live with day-to-day.

Best diamond shapes for a solitaire

Any diamond shape works in a solitaire, but some pair better than others. Here's what UK buyers are actually choosing in 2026, with the trade-offs nobody tells you about.

UK prices in 2026

Real prices from UK jewellers. Not “starting from” marketing numbers — actual ranges you'll encounter when you shop. Lab-grown diamonds are chemically identical but 30-50% less expensive.

How to choose the right carat

Here's what nobody tells you: a well-cut 0.9ct diamond looks virtually identical to a 1ct on the finger, but costs 15-25% less. The price jumps at “magic numbers” (0.5, 1.0, 1.5, 2.0) because demand spikes at round carats.

Our advice: prioritise cut quality over carat weight. A brilliantly cut 0.8ct diamond will genuinely outshine a poorly cut 1.2ct. The 4Cs guide explains exactly where to compromise and where not to.

For finger size context: on a UK size L-M hand (the average), a 1ct round diamond looks substantial without being overwhelming. On smaller hands (H-K), 0.7-0.9ct can look just as impactful. On larger hands (O+), you might want 1.2ct or above.

And remember: oval and pear shapes look 15-20% larger than round at the same carat weight because they have more surface area. A 0.9ct oval can look like a 1.1ct round. That's a genuine hack if budget matters.

Where to buy solitaire rings in the UK

The UK has excellent options whether you prefer shopping in person or online. Here are our top picks based on quality, value, and customer experience.

Frequently asked questions