Choosing an engagement ring is one of the most personal purchases you'll ever make. With so many styles, stones, and settings available, it can feel overwhelming. This guide breaks it down into the decisions that actually matter.
Start With the Stone
The centre stone defines the ring. The three most popular choices in 2026 are natural diamonds, lab-grown diamonds, and moissanite — each with distinct advantages.
Lab-grown diamonds are chemically identical to natural diamonds and cost significantly less for the same quality. Moissanite has a higher refractive index than diamond, producing more fire and brilliance, and is the most affordable of the three. Both are ethical, durable, and beautiful choices for a ring that will be worn every day.
Choose Your Shape
Stone shape is one of the most visible aspects of a ring. The most popular shapes right now are round brilliant, oval, cushion, and pear — all of which maximise light return and suit a wide range of settings.
- Round: The most brilliant cut, timeless and universally flattering
- Oval: Elongates the finger, currently one of the most sought-after shapes
- Cushion: Soft, romantic silhouette — as seen on Meghan Markle's ring
- Pear: Distinctive and modern, especially striking in a solitaire setting
Pick Your Setting
The setting determines how the stone sits on the band and how much light it receives. Solitaire settings maximise brilliance by exposing the stone on all sides. Halo settings surround the centre stone with smaller stones for added sparkle and the appearance of a larger centre. Trilogy settings — like our Classic Trilogy Moissanite Ring — add meaning with three stones representing past, present, and future.
Select Your Metal
Yellow gold adds warmth and pairs beautifully with cushion and oval cuts. White gold and platinum give a contemporary, high-contrast look. Rose gold is romantic and flattering on most skin tones. At Mara & Co, we work primarily with 925 sterling silver and 14ct gold — both durable and beautiful for everyday wear.
