Every Diamond Shape Compared
How each shape looks, who it suits and what it costs per carat against round

Engagement ring quiz
Seven quick questions, under two minutes. You get a shape, metal and diamond spec that suit them, with real Hatton Garden prices for what you want to spend. No signup.
A few quick taps and we will point you to a realistic starting spec.
The guides behind every answer in this quiz.
How each shape looks, who it suits and what it costs per carat against round
What each metal looks like after a year of daily wear, and what it costs
The full decision, step by step, from first idea to booking a viewing
You answer up to eight questions about shape, setting, metal, natural or lab-grown, what you want to spend and how you like to buy. We turn your answers into a starting spec: the shape and metal we recommend, the carat, cut, colour and clarity you can realistically expect for your spend in Hatton Garden, and the type of jeweller that fits how you like to shop.
Pick "Not yet, help me choose" and we ask one question about their style instead. Classic, understated taste points to round. Fashion-led taste points to oval. Design-led, minimal taste points to emerald. Someone who wants a ring nobody else has suits pear. Check what they already wear, their Pinterest saves and comments about friends' rings, because most people have a preference even if they have never said it out loud.
They are the same 2026 Hatton Garden price ranges our budget calculator uses, for GIA and IGI certified round diamonds including a setting. Fancy shapes like oval, cushion and pear typically cost 15-25% less per carat than round, so your result notes when you can expect a little more size for the same spend.
No. The quiz and your full result are free with no signup. You can copy a link to your result to share it or come back to it later.
Both are real diamonds and look identical. Lab-grown costs 70-80% less for the same-looking stone, while natural keeps far more resale value. If you are not sure, choose "Show me both" and your result puts the two side by side at your spend.