Two hands held together, one wearing a solitaire diamond engagement ring

Engagement rings by For Your Eternity

Engagement rings in platinum or gold, set with GIA or IGI certified natural or lab-grown diamonds or coloured gemstones, designed with you and made to order in our London workshop.

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What are you choosing between?

Every engagement ring on this page is made to order in our London workshop in platinum or gold, in styles from solitaire and halo to trilogy and toi et moi, with ten diamond shapes or a coloured gemstone at the centre. Centre stones are natural or lab-grown, each with a GIA or IGI certificate, and every price is fixed before we make. Rings take 3 to 4 weeks; bespoke designs 2 to 5 weeks.

Read the Engagement Ring Guide, the 4Cs explained and our note on budget, or book a free consultation.

Three ways to start

Design your own engagement ring

Design your own engagement ring

Create a bespoke ring that reflects your story, designed with you in CAD and made in our London workshop with ethical diamonds and responsibly sourced metals.

Prices on these designs are for the setting. Choose your centre stone on the product page to see the complete ring price before you order.

Natural or lab-grown: the short version

Natural diamondLab-grown diamond
What it isCarbon crystallised in the earth over billions of yearsThe same carbon crystal, grown in weeks
Look and hardnessIdentical to the eye and under a loupeIdentical to the eye and under a loupe
CertificateGIA or IGIGIA or IGI, stating lab-grown
PriceHigher per carat, reflecting rarityLower per carat, so the same spend buys a larger or higher-grade stone
Why people choose itRarity and a documented originSize and grade for the spend, and a known origin

The full comparison is on our natural and lab-grown diamonds page.

What makes our engagement rings ethical?

  1. Natural diamonds sourced under the Kimberley Process and the World Diamond Council System of Warranties.
  2. Lab-grown diamonds offered in every setting, with the same GIA or IGI certification.
  3. Responsibly sourced precious metals, hallmarked at a UK Assay Office.

Read more about how we source our stones and metals.

The Engagement Ring Guide

The Engagement Ring Guide

Free download

The Engagement Ring Guide

Budget, the Four Cs, diamond shapes, settings and sizing: read online or take the free PDF before you buy.

Why choose For Your Eternity?

  • Ethically sourced diamonds and materials

  • Fair, transparent pricing, fixed before we make

  • Matching wedding rings

  • Educational approach to finding you the right ring

  • Fully customisable designs

  • Free, tracked and insured UK delivery

  • One free resize within 12 months

  • Lifetime warranty against manufacturing defects

Ring presented for a personalised consultation

Your forever begins here

Book a personalised consultation

  • Ensure you choose the right ring
  • Discover different ring styles
  • Pick the right ring for your budget
  • Find out how to choose the correct size

Frequently asked questions

How much should I spend on an engagement ring?

As much as you are comfortable with, and no more. The two months' salary rule was an advertising slogan, not advice. The setting, the stone's size and whether it is natural or lab-grown decide most of the price; our budget guide shows what each range buys. We will always tell you where money makes a visible difference and where it does not.

What is included in the price shown?

Most listings show the price of the setting. Choose a centre stone on the product page and the complete ring price appears before you order. Prices are fixed before we make, and nothing is added later.

Lab-grown or natural diamond?

Both are diamonds, chemically and optically identical, and both come with GIA or IGI certificates. Lab-grown costs less per carat, so the same spend buys a larger or higher-grade stone. Natural diamonds carry rarity and a documented origin. Neither is right for everyone; we show both side by side.

Which diamond shape looks biggest?

Elongated shapes, oval, pear and marquise, look larger than a round of the same carat because more of the weight sits in the visible face. Round brilliants show the most sparkle; emerald and Asscher cuts show clarity and need a cleaner stone. Our diamond shapes page compares all ten.

How do I find out a ring size without asking?

Borrow a ring they wear on the same finger and we will measure it, or order our free UK ring sizer. If you have to guess, most women's ring sizes in the UK fall between K and N, and every ring includes one free resize within 12 months of delivery, so a near miss is easily fixed.

How long does an engagement ring take?

Rings from the collection are made to order and normally take 3 to 4 weeks from the next working day. Bespoke designs take 2 to 5 weeks depending on the design, plus any time needed to source a particular stone. Tell us your date before you order and we will say honestly whether we can meet it.

Can I see rings in person before I buy?

Yes. We meet by appointment across London and bring the rings and stones you are considering; there is no showroom to visit on spec. If you are elsewhere, we do the same by video and post a ring sizer first.

Can I design my own engagement ring?

Yes, two ways. The Ring Matchmaker narrows our collection to the rings that fit what you describe. A bespoke commission starts with a conversation, then a CAD design you approve before anything is made, guided personally by our founder.

Have more questions to ask?

We’re here to help. If you have any questions about our rings, designs or ethical sourcing, get in touch and we will be happy to guide you.

Enquire now
Hand wearing a For Your Eternity ring

The For Your Eternity guarantee

  • GIA & IGI certified centre diamonds
  • Ethical, conflict free gemstones & precious metals
  • 10% off wedding rings for clients whose engagement ring we made
  • Free, tracked and insured UK delivery
  • One free resize within 12 months of delivery (full eternity rings are sized before they are made)
  • Free inspection and cleaning for life
  • Lifetime warranty against manufacturing defects

Personal guidance

Still unsure where to start?

Book a free consultation in person, by phone or by video.

Contact us