Bridal jewellery · Engagement ring · Rings
Coral Arc 2.18ct Pear Lab-Grown Diamond Engagement Ring in Platinum
Coral Arc is a made-to-order platinum engagement ring centred on a 2.18ct pear-shaped fancy vivid coral pink lab-grown diamond. A sculptural split gallery crosses beneath the stone with a discreet yellow gold inner liner, while a graduated diamond collar follows one outer curve and hidden crimson rubies add a private detail in profile.
Available to order — price on enquiry
Answer a few questions and our studio will prepare a tailored quote based on your preferred metal, stones, size and budget.
Made to order. Each piece begins when you do — typically 4 to 6 weeks from confirmation. Stone availability is confirmed by the studio before any work begins.
- Approved by you before we craft it — we share a design first
- Lifetime aftercare & resizing at our Hatton Garden atelier
- Worldwide delivery, fully insured and tracked
- Handcrafted in Hatton Garden by the London Gold Centre studio
Details
- Category
- Bridal jewellery, Engagement ring, Rings
- Lead time
- 4 to 6 weeks
- Made to order
- Yes — handcrafted in our atelier
How this works
You stay in control. Before manufacturing begins.
Once your order is placed, we don't go straight into manufacturing. The atelier first prepares everything you need to be sure — and nothing is made until you approve it.
A full CAD design
A precise 3D render showing the exact piece we will make for you.
The complete specifications
Stones, metals, sizes, settings and finish — set out clearly so nothing is left to interpretation.
Photographs of the actual stones
And, where useful, short videos — so you see the exact stones we will set, not stock images.
Manufacturing only begins after you have reviewed all of this and confirmed you are happy. Your piece is made on your approval, not before.
Worldwide delivery
Crafted in London. Sent wherever you are.
We work from our atelier in Hatton Garden — but the stones, the metals, the inspiration and the craftsmanship behind each piece can come together from all over the world. In a way, the piece you wear carries a little of the world with it.
Secure, insured delivery
Every order is sent fully insured by carriers we trust, with tracking from the moment your piece leaves the atelier — so you know exactly where it is, every step of the way.
A note on local taxes
For deliveries outside the UK, import duty, customs charges or local VAT may apply at the destination. These are set by the country you're in and are the customer's responsibility — but we'll happily guide you through what to expect, and our delivery partner will help with the formalities so nothing comes as a surprise.
About this piece
Coral Arc is a romantic Studio Product designed around the quiet drama of a pear-shaped coral pink centre stone. The 2.18ct fancy vivid coral pink lab-grown diamond remains the clear protagonist, held above a split open gallery where polished platinum ribbons rise, cross and resolve into a slim yellow gold inner liner. The result feels bridal and architectural without losing softness on the hand.
A graduated line of small white diamond accents traces only the outer curve of the pear, framing the centre stone without becoming a conventional full halo. The point is left clean and directional, giving the ring a fresh silhouette while preserving the timeless centre-stone-led language of an engagement ring.
Beneath the gallery shoulders, a pair of round crimson rubies is bezel-set as a hidden detail, visible only from the side. It is an intimate touch rather than a second focal point, intended to bring a warm private note to the shown configuration. This piece is made to order, and our studio reviews the details before production to refine proportions, setting security and stone specifications.
Specifications
- Made-to-order Studio Product engagement ring
- Primary metal: polished platinum
- Secondary metal: slim yellow gold inner liner
- Centre stone: 2.18ct pear fancy vivid coral pink lab-grown diamond
- Accent stones: round white diamonds, 0.02ct each, graduated along the outer curve of the pear
- Additional hidden detail stones: pair of round rich crimson red rubies, 0.03ct each, bezel-set beneath the gallery shoulders
- Setting concept: asymmetric split open gallery with crossing platinum ribbon structure
- Band proportion intended for bridal wear, approximately 1.5-3mm subject to ring size and CAD review
- Shown configuration uses a polished finish and centre-stone-led bridal proportions
- Additional stone: Hidden detail stone Ruby — 0.03ct
This is a made-to-order Studio Product, available on backorder. Estimated manufacturing time is 4 to 6 weeks from order. The price and image shown reflect the shown configuration; our studio reviews the metal, stone availability and making details before production.
Metals & stones in this piece
Platinum is a prestigious and naturally white metal, prized for its rarity, density, and enduring lustre. Unlike other precious metals, it does not tarnish or discolour with time, maintaining its cool, luminous sheen. Its remarkable durability—resistant to wear and corrosion—makes it an ideal choice for daily wear, though its softness relative to hardness means it develops a gentle patina over years of use, a characteristic many cherish as a sign of authenticity and lived-in elegance. Lab-grown diamonds, chemically and optically identical to mined diamonds, offer exceptional brilliance and hardness (10 on the Mohs scale), ensuring they resist scratching and retain their fire for generations. A polished finish on platinum enhances its reflective quality, though this surface may soften subtly with wear, adding to the piece’s unique character rather than detracting from it.
Caring for this piece
To preserve your platinum and lab-grown diamond jewellery, clean it regularly with a soft-bristled brush and warm, soapy water, then rinse and pat dry with a lint-free cloth. Store pieces separately in a fabric-lined box or pouch to prevent scratches from other jewellery. Avoid exposing platinum to harsh chemicals, such as chlorine or bleach, which can weaken the metal over time, and remove your jewellery before swimming, gardening, or engaging in physical activities that may subject it to knocks or abrasions. While platinum is highly durable, its polished surface may develop a natural patina; if you prefer a high-shine finish, a jeweller can repolish it for you. Handle your pieces with care to maintain their beauty for years to come.
Made yours
Customise this design.
Try the piece in different metals or stones, then request a personalised quote when you find the version you would wear. The studio shapes the variation with you.
Made to order
Nothing is made before it is yours.
Every piece begins when you do. We confirm every detail — including stone availability — before a single setting is touched. In the rare case a stone cannot be sourced, we will contact you straight away and offer an honest alternative or a full refund.
From here
Four quiet steps to your piece.
Discover
You have found a piece you love — or one to begin from.
Refine
Adjust the metal, the stone, the proportions — together with our studio.
Approve
We confirm every detail, including stone availability, before any work begins.
Craft
Each piece is handcrafted to order. Typically 4 to 6 weeks.
Questions about this design
Real answers from the studio.
No questions about this piece yet — be the first to ask.
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