The cathedral setting is one of the most recognisable — and most misunderstood — engagement ring designs. If you have searched for a “cathedral engagement ring” or a “cathedral mount ring,” you have already seen its signature silhouette: graceful arches of metal that rise from the band to cradle the centre diamond, echoing the soaring arches of a cathedral. This guide explains how the setting works, who it suits, and how to design a bespoke cathedral ring around a lab-grown diamond that meets the Montare standard.
What is a cathedral setting?
A cathedral setting uses two arches of metal that extend up from the band to support the centre stone from the sides, rather than only from beneath. Those arches give the setting its name. The result is a centre diamond that sits elevated and beautifully framed, with a striking profile when viewed from the side.
You will sometimes see the term “cathedral mount” used instead. It means the same thing: the mount is simply the structure that holds the diamond, and a cathedral mount is one built with these raised arches.
Why choose a cathedral setting?
- It elevates the diamond. The arches lift the centre stone so it catches more light, and can make the diamond read larger and more present on the hand.
- It is secure. The additional metal supporting the stone from the sides adds real structural strength — which matters when you are setting a substantial centre diamond.
- It has presence from every angle. Many settings only look their best from above. A cathedral ring is designed to be admired in profile, too.
- It is endlessly adaptable. Cathedral arches pair beautifully with a plain band, a pavé band, a halo, or a hidden halo — so the look can be as understated or as bold as you like.
Things to consider
Because the centre stone sits higher, a cathedral ring has a little more height than a low-profile solitaire. For most people that is exactly the appeal, but it is worth handling one in person if you have an active lifestyle. The arches also create a few extra places where everyday dust can gather, so an occasional clean keeps the diamond bright. Neither is a drawback so much as something to know before you choose.
The best diamond shapes for a cathedral setting
One of the reasons the cathedral setting endures is its versatility — it flatters nearly every diamond shape. A round brilliant looks classic and balanced; an oval or pear elongates the finger; an emerald or radiant cut gains drama from the raised arches. If you are still deciding on a shape, our visual guide to engagement ring shapes walks through each one.
Cathedral settings and lab-grown diamonds
A cathedral setting is built to showcase the centre stone, so the quality of that diamond is everything. At Montare, every centre diamond is held to a single, non-negotiable standard: lab-grown, D–E colour, VVS1–VVS2 clarity, Triple Excellent cut with ideal table and depth, a three-carat minimum, and IGI certified. Nothing below that floor.
Choosing a lab-grown diamond is what makes that standard attainable. A mined diamond at this calibre and size would cost many times more for an identical-looking stone — we break the numbers down in what an $11,000 lab-grown ring is really charging you for. The arches of a cathedral setting simply give a diamond of this quality the stage it deserves. If you want to understand why cut matters most of all, see Triple Excellent cut, explained.
Designing a custom cathedral ring with Montare
Every Montare cathedral ring is made to order, never pulled from a case. You can start in our ring builder — choose your shape, setting, carat, clarity and metal, and see the price update as you go. Or, if you would rather be guided, book a private consultation and we will design it with you, then source the exact stone to your specification.
Because your ring is built around a centre stone you own, it is also protected by our Lifetime Setting Upgrade: whenever you choose to trade up to a larger design in the future, the value of your original setting carries forward, and your original diamond comes back to you. We are based in Toronto and ship free, fully insured, across Canada and worldwide.
Frequently asked questions
What is the difference between a cathedral setting and a cathedral mount?
There is no difference — they are two names for the same design. “Mount” simply refers to the structure that holds the diamond, and a cathedral mount is one built with arches rising to the centre stone.
Are cathedral settings good for lab-grown diamonds?
Yes. The raised arches elevate and frame the centre stone, which makes them an ideal showcase for a high-quality lab-grown diamond like the D–E, VVS1–VVS2, Triple Excellent stones Montare sets as standard.
Can I design a custom cathedral engagement ring in Canada?
Yes. Montare is a Toronto-based, made-to-order house. You can design a custom cathedral ring online in our ring builder or with a private consultation, and we ship free and fully insured across Canada.
Does a cathedral setting make the diamond look bigger?
It can. By lifting the centre stone above the band and catching more light, a cathedral setting often makes a diamond appear more prominent than the same stone set low.
Ready to see it on your hand? Explore our cathedral engagement rings, start designing in the ring builder, or book a consultation with our Toronto team.