Cocktail ring · Rings · Women's jewellery
Indigo-Violet Baguette Diamond & Sapphire Deco Arch Cocktail Ring in Platinum and Rose Gold
A dramatic Art Deco-inspired cocktail ring in polished platinum and rose gold, centred on a vivid indigo-violet baguette lab-grown diamond. Stepped platinum and asymmetric rose gold gallery arches, sapphire baguette accents set at an oblique angle, and luminous moonstone cabochons create a play of tension, light, and sculptural detail. A studio-approved statement piece, made to order.
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
- Cocktail ring, Rings, Women's jewellery
- 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
This studio-approved cocktail ring distills the spirit of Art Deco into a refined, dramatic form. A baguette-cut lab-grown diamond in a vivid indigo-violet hue commands attention, cradled in a stepped platinum collet. Beneath, an asymmetric rose gold gallery sweeps in a vaulted arch, its inner walls engraved with micro-milgrain chevrons reminiscent of Deco ironwork. Eighteen baguette sapphires form a single angled channel along the outer platinum rail, introducing geometric tension and a flash of blue. Two cabochon moonstones, set low and flush into each shoulder of the rose gold arch, reveal a blue flash as the hand moves. The ring’s high-polish finish enhances each sculptural detail, balancing architectural strength with elegant, wearable proportions. Each made-to-order piece is carefully reviewed by our studio before production begins.
Specifications
- Cocktail ring design for women
- Platinum primary metal with rose gold gallery detailing
- Polished high-gloss finish
- baguette-cut vivid indigo-violet lab-grown diamond (main stone)
- Eighteen baguette sapphires (each, accent stones) set in angled channel
- Two cabochon moonstones (adularescent white with blue flash) flush-set in shoulders
- Stepped platinum collet and asymmetric rose gold vaulted arch gallery
- Micro-milgrain chevron engraving on gallery inner walls
- Refined band width (1.5-3mm) for elegant proportions
- Art Deco-inspired sculptural form
- Studio Product, made to order
- Additional stone: Side feature stone Moonstone
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.
The story of this design
We drew this ring from the geometric rigour of the Art Deco period, where architecture and adornment spoke the same language. The baguette diamonds carry that lineage naturally — their clean, elongated facets were made for precisely this kind of structured, arching form. Against them, the sapphires bring depth, that particular blue-violet that shifts in candlelight like the hour between dusk and dark.
Platinum holds the geometry with the quiet authority it demands, while rose gold warms the composition from within, stopping it short of severity. Together they feel considered rather than composed.
This is a ring for evenings when you wish to arrive as a complete thought. For the woman who understands that restraint and drama are not opposites — that the most powerful statements are the ones that know exactly when to stop.
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 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.
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