Concierge Prodiam replies within 24 hours, Mon–Fri. Insured overnight delivery across South Africa, and insured worldwide dispatch.

A diamond solitaire ring, the classic promise ring form
  • Natural diamonds only

    Mined-Earth, never lab-grown, by conviction, not price. Kimberley-Process documented from the mine of origin. Why we don’t sell lab-grown →

  • GIA & EGL certified

    Every loose stone certified by the GIA or EGL. Cert PDF supplied per stone.

  • Insured delivery, SA & worldwide

    Overnight across South Africa via Brink’s, G4S or our nominated jewellery courier. Insured worldwide dispatch via Ferrari Group and FedEx Custom Critical.

  • 14-day in-person exchange

    In-person sales at the viewing room come with a 14-day exchange courtesy on stock pieces. Distance-sale CPA cooling-off applies.

What a promise ring is, and what it is not

A promise ring says the engagement is coming, before you are ready to make it formal. Couples give them before a long stretch of study, a season of long distance, or simply because the moment for the proposal deserves to be its own moment later.

It is not a lesser engagement ring, and it is not a toy. The honest convention is that a promise ring sits a deliberate step below the engagement ring in size and spend, so the engagement keeps its weight when it arrives. What it must never be, in our view, is a fake: a stone nobody will certify, sold on sentiment.

Every promise ring we make carries a natural diamond with its own independent GIA or EGL certificate, whatever its size. The certificate is what lets the stone hold its value, and what makes the trade-up honest later.

Promise ring or engagement ring: the honest comparison

QuestionThe honest answer
What it marksA promise ring marks commitment before engagement; an engagement ring marks the formal agreement to marry.
Typical scaleA promise ring is deliberately simpler and smaller-stoned, so the engagement ring keeps its moment.
Which fingerEither. Left ring finger if you want the promise visible where the engagement ring will sit; right hand if you want that finger kept for the proposal.
The stoneSame standard either way at Prodiam: natural, independently certified, cut with the same care. Size is the variable, never honesty.
What happens at the engagementThe promise ring moves hands, is retired, is reset, or its stone trades up toward the engagement diamond through our upgrade programme.

The trade-up path: why the first ring is not money lost

The quiet problem with promise rings from a chain store is what happens two years later. The engagement ring arrives, the promise ring goes into a drawer, and the money it cost goes with it.

We built our upgrade programme for exactly this. When you are ready, trade the promise ring’s certified diamond in, pay the difference, and put the value into the engagement stone. Or keep the stone and have it reset into the engagement design on the same bench that made the first ring.

Either way, the certificate is what makes the arithmetic honest: the stone’s grades are on paper, so its trade-in value is a conversation about facts, not a jeweller’s shrug. It is the practical reason to start with a real, certified stone even at a modest size.

How a promise ring is made to order

  1. 01

    The brief

    Tell us the budget you are comfortable with, the style she or he wears, and whether the ring should one day become, or feed, the engagement ring. We respond within 24 hours.

  2. 02

    The stone

    We propose real, certified natural diamonds inside your figure, honestly graded, with the certificate for each. You see the actual stone by video or in person before anything is made.

  3. 03

    The setting

    A solitaire, a bezel, a fine pavé band, in 18k white, yellow or rose gold or platinum, built around the stone on our Bedfordview bench. Simple settings suit promise rings best, and cost less.

  4. 04

    The hand-over

    Collection at the viewing room by appointment, or insured overnight delivery anywhere in South Africa, with the certificate and a written valuation for insurance.

We are a cutting house and diamond dealer, not a mall counter: the stone in your promise ring is priced at the bench, and the person you brief is the person whose desk it crosses. If you would rather start from the diamond, see live prices to your spec and we will build the ring around what you choose.

Promise rings: common questions

What is a promise ring, and what does it mean?

A promise ring is a ring given before an engagement, as a serious statement of commitment when an engagement is intended but not yet right, because of age, study, distance or simply timing. It is not a trend invention; couples have exchanged commitment rings for centuries.

What it means is decided by the two of you: most couples treat it as "the engagement is coming", worn until the engagement ring replaces it. There are no rules about what it must look like, though most promise rings are deliberately simpler and smaller-stoned than the engagement ring that will follow, so the later ring keeps its moment.

What is the difference between a promise ring and an engagement ring?

Intent and scale, not construction. An engagement ring marks a formal agreement to marry and usually carries the couple’s most significant diamond. A promise ring marks commitment before that point, and is usually a step down in size and spend on purpose. Structurally they are made the same way on the same bench: a natural diamond, independently certified, in a precious-metal setting.

If you would like the promise ring to become the engagement ring later, tell us at the brief; we will build it so the stone can be reset, or trade the stone up through our upgrade programme when the time comes.

Which finger does a promise ring go on?

There is no fixed rule in South Africa. Many wear a promise ring on the left ring finger, the same finger the engagement ring will occupy, and move or retire it at the engagement. Others deliberately choose the right hand so the left ring finger stays open for the proposal. Both are common and neither is wrong: choose the hand that matches how public the two of you want the promise to be.

How much should a promise ring cost?

Meaningfully less than the engagement ring you intend to give later, and beyond that it is entirely your call. The price of a diamond promise ring is set by the stone, the carat, colour and clarity you choose, plus the metal and the making.

Because we cut diamonds in-house and sell direct, the stone is priced at a wholesale-direct level rather than a retail markup, which matters most at smaller budgets where every rand of value shows. Tell Darren the figure you are comfortable with and he will show you honestly what it buys; we never publish a made-up "from" price, and we never push you past your number.

Can the promise ring become the engagement ring later?

Yes, and this is the strongest reason to buy the promise ring from a cutting house rather than a chain store. Two honest routes: the stone from the promise ring can be reset into a new engagement design on our bench, or you can trade the diamond up through Prodiam’s upgrade programme, trade in, pay the difference, and the story carries over into a larger stone.

Either way the first ring is a step on the road rather than money left behind in a drawer.

Do promise rings have real diamonds, and are they certified?

Ours do, and only real ones. Prodiam works in natural diamonds exclusively, and the centre stone in a promise ring is independently certified by GIA or EGL like any other stone we sell, with the certificate supplied. At promise-ring sizes many jewellers quietly substitute cubic zirconia or uncertified melee; we do not.

A smaller certified natural diamond, honestly graded, is worth more than a larger stone nobody will vouch for, and it holds its trade-up value in our upgrade programme precisely because the certificate proves what it is.