Pendant necklace · Pendants · Women's jewellery
Architectural Blue Diamond Pendant
This studio-approved pendant showcases a 3.50ct fancy deep blue pear lab-grown diamond, suspended in a geometric platinum frame. The dramatic design is accentuated by a vertical line of jet black onyx baguettes and subtle diamond melee, creating a bold statement piece perfect for evening occasions.
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
- Pendant necklace, Pendants, 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
Crafted in our studio, this architectural pendant is a striking composition of platinum and lab-grown stones. At its heart lies a 3.50ct pear-shaped fancy deep blue diamond, elegantly set within a matte platinum frame. The pendant's bold silhouette is enhanced by a vertical line of jet black onyx baguettes, while delicate diamond melee adds a whisper of brilliance. This dramatic piece is designed for those who appreciate modern elegance and bold statement jewellery.
Specifications
- Pendant type: Necklace
- Primary metal: Platinum
- Finish: Matte
- Main stone: 3.50ct pear fancy deep blue lab-grown diamond
- Accent stones: 0.02ct melee lab-grown diamonds
- Additional stones: 0.30ct total weight baguette jet black onyx
- Additional stone: Decorative stone Onyx — 0.30ct total weight
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 dense, naturally white precious metal prized for its purity and quiet strength. Most fine jewellery uses platinum at 950 parts per thousand, making it heavier and more resistant to wear than many alloyed metals. Rather than being lost through abrasion, platinum simply displaces when marked, so the metal is retained within the piece over decades of wear. Lab-grown diamonds share the identical crystal structure, hardness and brilliance of mined diamonds, graded by the same 4Cs, offering a bright, durable stone with excellent scratch resistance for daily wear. A matte finish is achieved by lightly texturing the platinum's surface, giving a soft, contemporary glow rather than a mirror shine. With handling, this satin texture will naturally soften further and pick up gentle, even sheen in raised areas, while recesses retain their subtler matte character. This interplay of textures is a natural and attractive part of platinum's ageing process, reflecting genuine, considered wear rather than damage.
Caring for this piece
Clean your piece regularly with warm water, a mild soap and a soft brush, rinsing thoroughly and drying with a lint-free cloth. This keeps the diamond bright and clears any build-up from lotions or skin oils, which can dull a matte surface. Avoid chlorine, bleach and harsh household chemicals, as these can affect the surface finish over time. Store the piece separately in a fabric-lined box or pouch to prevent contact with harder gemstones or other jewellery, which could scratch the matte texture. Remove rings before manual work, sports, gardening or swimming to protect both metal and stone. If the matte finish begins to show natural sheen from handling, a jeweller can refresh the texture upon request. Periodic professional checks are worthwhile to ensure the setting remains secure and the diamond is held firmly.
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.
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