Diamond Prong Stone Setting for Brightness and Security

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing methods for setting precious or semi-precious stones on jewelry supports are often unreliable, damage-prone, and do not effectively enhance the visibility and brightness of the stones.

Innovation Solution

A diamond-based assembly system comprising a base and claws made of synthetic or natural diamonds, which securely holds the stone while maintaining a discreet and aesthetically pleasing appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional metal prongs are used to set the stone, then the stone is securely held, but the visibility and brightness of the stone are compromised

Engineering Contradiction:

Improvesecurity of stone settingVSAvoidvisibility and brightness of stone

Core Design Contradiction:

ReliabilityVSIllumination intensity

Solution Approach 1:

The patent changes the material parameter of the claws from conventional metal to diamond, exploiting diamond's unique optical properties (transparency and refractive index) to maximize light transmission through and reflection from the stone, while maintaining mechanical strength for secure setting

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention uses diamond material that combines both mechanical strength for reliable stone holding and optical transparency for enhanced visibility, creating a composite functional material that simultaneously addresses both security and aesthetic requirements

Inventive Principle:

Principle #40Composite materials

2Shape

If the assembly device is made discreet to integrate into the jewelry aesthetics, then the overall appearance is improved, but the reliability and strength of the setting may be compromised

Engineering Contradiction:

Improveaesthetic integration of assembly deviceVSAvoidreliability of stone setting

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The patent changes the material parameter from conventional metal to diamond, which allows the assembly device to be visually discreet (matching or enhancing the stone's appearance) while simultaneously providing superior mechanical strength and reliability for secure setting

Inventive Principle:

Principle #35Parameter changes

3Productivity

If pressure is applied by smaller stones on larger stones to achieve setting, then multiple stones can be set, but damage to the stones and loss of reliability occurs

Engineering Contradiction:

Improveability to set multiple stonesVSAvoidreliability and integrity of stone setting

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent divides the setting function into separate independent diamond claws for each stone, eliminating the need for stones to press against each other. Each claw independently secures its designated stone, preventing damage while maintaining the ability to set multiple stones simultaneously

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4537700A1Device for assembling a precious or semi-precious stone on a support

Publication Date: 2025.04.16 RICHEMONT INTERNATIONAL SA

Figure 1
Figure 2
Figure 3

AI summary

The invention relates to an assembly device (1) for mounting a precious or semi-precious stone (8) on a support (4) comprising: - a base (2) intended to be made solid to the support (4), and - at least two prongs (10) each of which is intended to be solid to the base (2) and to cooperate with the stone to contribute to its assembly to the support (4), in which each of the prongs (10) is made of synthetic or natural diamond.