The engagement ring collection runs from solitaires priced around £1,500 up through bespoke pieces closer to £7,000, and the eternity collection splits into half, full, ready-to-wear, and coloured stone versions. Those two ranges cover different moments: one is for choosing a ring before a proposal, the other is for adding to a hand that already has one.

Ready-to-wear pieces ship faster than a custom order, and that difference matters more once you know which collection you’re actually shopping.

Who Rennie & Co Are and Why It Shapes Their Collections

Rennie & Co has worked out of Hatton Garden since 1958, and the business is still run by the same family, now in its third generation. Because the same people who design a piece also make it, a ring in the collection isn’t locked to what’s sitting in a display case. If you see a solitaire you like but want the band narrower or the stone half a carat larger, that’s a conversation with the person who can actually change it.

GIA certification on the diamonds means each stone has been independently graded for cut, colour, clarity, and carat weight, so you’re not relying on the seller’s own word for what you’re buying. The ethically sourced claim covers where the stones and metals originate, which matters if you plan to ask about it directly rather than take it on faith.

The showroom sits at 105 Hatton Garden. An appointment gets you dedicated time with a jeweller, but walk-ins are accepted too if you’d rather browse without booking ahead.

Rennie & Co Engagement Ring Collection

A solitaire is the safest pick when you’re choosing without your partner present. One stone, one clear focal point, nothing in the setting to guess wrong about in terms of taste.

Halo settings surround that centre stone with smaller diamonds, which makes it read as larger than its actual carat weight. Trilogy rings carry a specific meaning buyers ask about by name; the three stones read as past, present, and future rather than just a styling choice. A plain diamond band sits at the simpler end of the same range, for someone who wants sparkle without a raised centrepiece.

Coloured stone engagement rings swap the diamond for sapphire, emerald, or ruby. Sapphire holds up to daily wear about as well as a diamond does. Emerald is softer and shows wear faster, so it suits someone who wants the colour and is fine treating the ring a little more carefully.

Ready-to-wear pieces are ready to ship. Bespoke design starts with a consultation and takes longer, but it’s the route if the ring you want doesn’t already exist in the collection.

Solitaires like the Vittoria and Lia start around £1,500. Pieces at the upper end of the collection, generally more elaborate settings or larger stones, run closer to £7,000.

How to Choose an Engagement Ring from the Collection

Shape comes first. Round, oval, and radiant cuts each throw light differently, and if you know your partner’s taste in other jewellery, that’s usually the fastest way to narrow it down.

Setting comes next. A solitaire sits lower and catches less on clothing day to day, while a halo or trilogy adds height and a bit more presence at the cost of some everyday practicality.

If nothing in the collection matches what you have in mind, the in-house design process means a custom piece is built from your specifications rather than adapted from an existing template.

Rennie & Co Eternity Ring Collection

Half eternity rings set stones across the front half of the band only. That leaves the back plain, which makes the ring easier to resize later and more comfortable to stack against another ring on the same finger.

Full eternity rings carry stones the entire way round, so the sparkle continues no matter how the ring sits on the finger. The tradeoff is resizing. Because stones run all the way around, resizing a full eternity ring is more difficult and sometimes not possible without resetting stones.

Coloured stone eternity rings use sapphire, ruby, or emerald accents instead of an all-diamond band. That’s usually the choice for an anniversary piece meant to look distinct from a wedding band, rather than match it.

Ready-to-wear eternity rings are available without the wait a bespoke order requires. For someone buying to mark a specific date, like an anniversary that’s already on the calendar, that turnaround can matter more than any other factor.

Eternity rings get bought for a few different reasons: as the wedding band itself, as an anniversary gift, or to mark a milestone like the birth of a child.

Half vs Full Eternity, Which One to Pick

For daily wear, half eternity sits more comfortably against a second ring and doesn’t catch as much. Full eternity gives constant sparkle from every angle, but stacking it against another ring is less comfortable because both bands are raised the same amount.

Resizing is the more permanent factor. If your ring size is likely to change, half eternity leaves that option open in a way full eternity doesn’t.

Cost follows a similar pattern. Full eternity uses more stones for the same ring size, so a comparable look in half eternity generally costs less.

Seeing the Collections and Booking a Visit

The website shows the full collection, but seeing a piece in person, especially anything with coloured stones, gives a better sense of how it catches light than a photo does.

Appointments get you a jeweller’s full attention and are the recommended way to visit, though walk-ins are welcome if you’d rather drop by without scheduling ahead.

If nothing in the current collection matches what you’re picturing, a bespoke consultation is the next step, and that’s where the in-house design process starts from your own specifications rather than an existing piece.

The showroom at 105 Hatton Garden is closest to Chancery Lane and Farringdon stations.