real geometry · live

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Platinum 950 · Oval brilliant 1.40 ct

G/VS1 · natural · NS-4HNX

€6,900 – €8,200

1 · Design

Signature designs

Choose a complete Norrstone construction. Its setting, proportions and stone hold are solved together.

Classic settings

Or choose a classic setting and build it yourself. All options stay visible; choosing one replaces a selected signature design.

The stone sits low on a plain band. Nothing else to it.

Accents

The centre stone alone.

2 · Stone

Shape

Oval brilliant

Dimmed shapes do not fit the selected design.

Carat1.40 ct

Face-up stone size: 6.2 × 8.5 mm.

Origin

Mined. Price reflects rarity, grading and current market availability.

Colour

Near-colourless. Reads as white in every metal; the value grade most jewellers steer to.

Clarity

Minor inclusions, easily found under magnification. Eye-clean appearance varies by the individual stone, inclusion position and viewing distance. Inspect the exact stone before approval.

Until all three measurements are entered, the model uses a carat-and-ratio estimate.

3 · Band

Metal

Platinum 950

Band width2.2 mm

Band profile

A soft half-round top with no hard shoulder line.

Surface finish

Mirror-bright, the reference finish. What every stone photograph assumes.

4 · Fit & inscription

Ring size (EU)54

Inner circumference in millimetres. Not sure? Leave it at 54 — a jeweller sizes the finished ring, and this only changes how much metal it takes.

Inscription

Cut into the inside of the band — a date, initials, something only the wearer knows is there.

5 · Review

Ways to spend less

Unsure about anything — a grade, a size, a stone you already own? Write to us. A person answers.

Readiness

Geometry validation: PassedClosed component meshes; dimensions, volume and mass solve together.
Goldsmith rules: No encoded rule triggeredNo encoded trade rule is triggered. This is not a bench approval.
Design source: Custom compositionBuilt directly from the Studio's measured controls.
Production release: Workshop sign-off requiredBind the exact stone, then validate tolerances and production CAD with the named workshop.

The full bridal set

See the wedding band beside this ring.

Choose the finished gap, profile and width with both rings rendered together at true scale.

Design the bridal stack

Geometry validation passed · workshop review required

Opens the written specification sheet right here — every measurement, printable, ready to hand to a workshop.

Metal

4.00 g

Volume

193 mm³

Envelope

20.5 × 25.1 × 7.4 mm

Geometry

closed components · solved live

This is live geometry, not a pre-rendered picture. The shank, stone seats and claws are solved from the settings on the right, so dimensions and the metal estimate move with the design. It is a precise design specification for discussion with a jeweller; the joined solids, tolerances and production file still require workshop CAD validation before casting or machining.