Home Get Inspired Rings Signet Signet Ring Recreation — Gold, Onyx & Diamond Inlay

A 10k yellow gold signet-style ring with an asymmetric black onyx triangle inlay and a single round diamond set into the flat top, photographed on a natural stone surface.

Signet Ring Recreation — Gold, Onyx & Diamond Inlay

$$$

10k yellow gold, lab-created diamond, black onyx

A client came to us wanting to recreate his late grandfather's ring, which his grandmother had given him and which he had since lost. He wanted it trimmed down to a size that felt more wearable, working from a single photo to guide the design. When it arrived, he wrote simply: 'Thank you very much! It looks awesome.'

'Wow! You're right, I think it looks great.' — on seeing the first render

'Thank you very much! It looks awesome.' — on delivery

Start your project

Daily wear For himself Recreate What Mattered Lost or stolen piece

Quick specs

Design type

Rings Signet

Primary Metal

Yellow gold 10k

Shape / Cut

Round

Primary Stone

Lab diamond

Accent Stones

Other

Style

Bezel geometric Low-profile Signet

Design Complexity

Moderate

Intent

Recreate What Mattered Lost or stolen piece

Intent: Certainty

High

Size

Ring size 10.25 US. Band tapers to 5mm; top face width 8mm.

How they made it distinctive

01
Custom-cut triangular onyx panel, shaped after casting specifically to fit this ring's asymmetrical mounting
02
Top face narrowed from an estimated 10mm to 8mm, and the band tapered to 5mm, to give a bold design a smaller, more wearable footprint
03
Bezel-set diamond chosen to mirror the exact placement seen in the original piece
04
10k gold selected for its added scratch-resistance and durability for daily wear
05
Recreated from a single photograph and the client's memory, with no physical original to work from

How you'd make it yours

Stone: this piece uses a lab-created diamond and custom-cut onyx; a new commission could use moissanite or a natural diamond instead

Metal: this piece is 10k yellow gold; the same design works in 14k or 18k yellow gold for a richer color

Top width: this piece is 8mm at the top face; a new piece could be made wider or narrower depending on preferred scale

Engraving: the inside of the band can carry a new inscription on a fresh commission

One of a kind: this exact ring was designed to recreate one client's family piece and is not reproduced — a new commission is an original piece inspired by this one, not a copy

Design changes made

The top face was narrowed from an estimated 10mm on the original to 8mm, and the band was tapered down to 5mm at the shank, based on the client's request for a less prominent, more wearable scale.

Who this is for

This piece is for someone carrying forward a design that means something to them, but who wants it scaled to fit how they actually want to wear it day to day. It's especially right if you have only a photo to work from and want a design team to fill in the technical gaps while staying true to the original's character.

How it's made

Once the client approved the 3D render, the design moved to a resin model — a 3D-printed preview of the ring in its exact final geometry, shared with the client before any metal was cast. The resin was then used to create an investment mold, and molten 10k yellow gold was cast into the hollow cavity to form the raw ring body. After casting, the piece was cleaned up and polished to a mirror finish across the gold surfaces. The black onyx panel was custom-cut after casting specifically to fit the ring's mounting, since a pre-cut stone could not match the asymmetrical triangular shape. The lab-created diamond was then bezel-set into its round opening, and the finished onyx panel was set into its recess alongside it.

Key note

The onyx wasn't cut before casting — it was custom-shaped afterward specifically to fit this ring's mounting, since no pre-cut stone could match its asymmetrical triangular face.

Pricing guidance

A signet-style ring with a custom-cut stone inlay and a bezel-set diamond sits in the mid range for custom rings of this complexity. Most of the cost comes from the custom stone-cutting work and the gold content in a wider, substantial top face. Metal karat and stone choice are what move the price most from there.

Moves price up ↑

↑
Upgrading from 10k to 14k or 18k gold, which increases material cost substantially at this weight
↑
Using a natural diamond instead of a lab-created diamond
↑
Choosing a larger top face or wider band, which increases gold weight
↑
Adding a second custom-cut stone panel instead of one

Moves price down ↓

↓
Using a standard pre-cut stone shape instead of a custom-cut inlay
↓
Substituting moissanite for the lab diamond
↓
Reducing the top face width for a smaller, lower-profile design
↓
Choosing a lighter-weight band construction

Questions people ask

Can you recreate a lost ring from just one photo?

Yes, a single clear photo can be enough to start a recreation, though some details like exact proportions have to be estimated. The design team builds a 3D model and render based on the photo and the client's descriptions, and any assumptions are reviewed with the client before approval. Stone dimensions and setting depth are typically the hardest details to pin down from a photo alone. The final piece will closely match the original's look even though it isn't a scan of the actual item.

What is the difference between a lab diamond and moissanite?

Lab-created diamonds are chemically identical to natural diamonds, just grown in a controlled setting rather than mined, so they have the same hardness and sparkle. Moissanite is a different mineral entirely, with a higher refractive index that gives it a slightly different sparkle pattern and a lower cost than diamond. Both are durable enough for daily wear in a ring setting. The choice mostly comes down to preferred appearance and budget rather than durability.

Why does custom-cutting a stone cost more than using a pre-cut one?

A pre-cut stone is selected from existing inventory shaped to standard dimensions, while a custom cut requires a cutter to shape the stone specifically for one ring's mounting. This adds both time and skilled labor, since the cutter has to work to the exact geometry the setting requires. It's most common on asymmetrical or unusually shaped design elements, like a triangular panel set against a curved edge. The result is a tighter, more precise fit than a standard stone would allow.

How long does a custom ring recreation like this take?

From design approval to shipping, a piece like this typically takes around five to six weeks, with an additional one to two weeks upfront for the design and render process. Custom-cut stones can add extra time, since the cutting itself takes two to three weeks and happens after the metal casting is complete. The total timeline depends on stone complexity and any design revisions needed along the way. Rings without custom-cut elements are usually faster.

Can a wide ring top be made narrower without losing the design?

Yes, the width of the top face and the taper of the band are both adjustable in the design phase before casting. Narrowing the top reduces the overall visual footprint while keeping the same design elements, like a stone panel or gem placement, in proportion. This works well for anyone who wants a bold design without an oversized feel on the hand. The trade-off is that very intricate details may need slight resizing to remain balanced at a smaller scale.

Is 10k gold durable enough for a ring worn every day?

Yes, 10k gold is actually harder and more scratch-resistant than higher-karat golds like 14k or 18k, because it contains a higher percentage of alloy metals. It's a common choice for rings that see daily wear and potential impact. The tradeoff is a slightly less rich color compared to higher-karat gold. It also tends to be more budget-conscious than 14k or 18k options of the same design.

Can black onyx crack or chip over time?

Onyx is a fairly durable stone for jewelry, rating around 7 on the Mohs hardness scale, but it can chip if struck directly at an angle, particularly along a thin custom-cut edge. Daily wear is generally fine, but it's worth being mindful during activities with a high risk of hard impacts. If a panel is ever damaged, a replacement can typically be custom-cut again to match the setting. Keeping the ring stored separately from other jewelry can help prevent surface scratches over time.

What does a ring with a custom-cut gemstone typically cost compared to one with standard stones?

A custom-cut stone adds cost beyond the base price of the ring itself, since a cutter has to shape the stone specifically for that mounting rather than pulling from pre-cut inventory. On a piece like this, the custom cutting and the gold weight from a wider top face are the two biggest cost drivers. Choosing a standard pre-cut stone shape instead can bring the price down noticeably. The rest of the cost is driven by metal karat and the specific gems chosen.