Produce engraved surfaces for precious metal objects
This element focuses on the meticulous preparation and execution of engraving techniques on precious metal surfaces, a critical skill in gem setting and fine jewellery manufacture. Learners will develop competence in selecting appropriate tools, preparing workpieces, and applying both hand and machine engraving methods to achieve decorative or functional designs. Mastery of this subtopic ensures the ability to enhance the aesthetic and value of jewellery pieces with precision and artistry.
Assessment criteria
Topic Overview
The City & Guilds Level 3 Diploma in Gem Setting is an advanced vocational qualification designed for aspiring jewellery professionals who want to master the art of securely mounting precious stones into metal settings. This course covers a range of setting techniques, from basic claw settings to complex invisible and pave settings, ensuring you can handle both standard and bespoke pieces. You'll learn to work with various gem shapes, sizes, and materials, developing the precision and dexterity required in high-end jewellery manufacture.
This qualification is essential for those aiming to work in fine jewellery workshops, repair studios, or as self-employed setters. It builds on foundational skills from Level 2, focusing on accuracy, problem-solving, and quality control. You'll also study the properties of gemstones and metals, tool maintenance, and health and safety practices specific to the trade. By the end, you'll be able to independently plan, execute, and evaluate setting projects to industry standards.
In the wider context of manufacturing and engineering, gem setting represents a specialised craft that combines artistic vision with technical precision. It's a key skill in the luxury goods sector, where attention to detail and durability are paramount. This diploma not only prepares you for direct employment but also provides a pathway to higher-level qualifications or apprenticeships in jewellery design and silversmithing.
Key Concepts
Core ideas you must understand for this topic
- →Claw setting: Using prongs to hold a gemstone securely, requiring precise bending and filing to match the stone's girdle.
- →Pavé setting: Setting multiple small stones closely together, creating a continuous surface of gems held by tiny beads of metal.
- →Channel setting: Securing stones in a row between two metal walls, often used for wedding bands and requiring exact slot cutting.
- →Burnishing: Using a polished tool to push metal over the edge of a stone, common in rub-over settings for cabochons.
- →Stone selection and orientation: Choosing the right gem for the setting type and aligning it correctly to maximise brilliance and minimise stress.
Learning Objectives
What you need to know and understand
- Be able to prepare for the implementation of engraving processes, Be able to produce engraved surfaces
Assessment Criteria
Key criteria assessors look for in your portfolio
- Accurate interpretation of design specifications and selection of appropriate engraving tools and materials.
- Demonstration of safe and correct preparation of work area, including securing precious metal objects and maintaining tool condition.
- Production of clean, even, and well-defined engraved lines or textures that meet the required design and quality standards.
- Consistent application of engraving techniques with minimal errors, showing consideration for the metal's properties and final finish.
Assessment Guidance
Guidance for achieving higher grades
- 💡Always present a clear, step-by-step portfolio of evidence including photographs of preparation stages, tools used, and the finished engraved surfaces.
- 💡Demonstrate a range of engraving techniques to show versatility and depth of skill.
- 💡Ensure all health and safety protocols are documented and followed, as assessors will look for compliance.
- 💡Practice on sample metals to refine control before working on final precious metal pieces.
- 💡Always check your stone's orientation before cutting any seat. A common mistake is setting a stone off-centre, which ruins symmetry and can cause the stone to loosen. Use a loupe to verify alignment from multiple angles.
- 💡In practical assessments, demonstrate your understanding of tool selection. For example, using a scorper for precise metal removal versus a graver for finishing shows examiner you know the right tool for each stage.
- 💡Document your process in your logbook with clear photos and annotations. Examiners look for evidence of planning, problem-solving (e.g., how you adjusted a setting that didn't fit), and final quality checks like stone tightness and metal finish.
Common Mistakes
Common errors to avoid in your coursework
- Using incorrect graver angles leading to slipping or uneven cuts.
- Inadequate securing of the workpiece causing movement during engraving.
- Over-engraving or excessive pressure resulting in damage to the metal or loss of design clarity.
- Failure to maintain tool sharpness, producing ragged lines.
- Misconception: 'Any stone can be set in any setting.' Correction: Different gem shapes and hardness levels require specific setting types. For example, soft stones like opal are better suited to bezel settings than claw settings, which can stress the stone.
- Misconception: 'Tightening a claw always makes the stone more secure.' Correction: Over-tightening can crack the stone or distort the setting. The goal is a snug fit that allows the stone to sit evenly without excessive pressure.
- Misconception: 'Pavé setting is just about drilling holes and placing stones.' Correction: It requires careful layout, precise bead formation, and consistent metal flow to ensure stones are level and secure. Poor technique leads to uneven surfaces and lost stones.
Frequently Asked Questions
Common questions students ask about this topic
Pass / Merit / Distinction Evidence Checklist
How your portfolio evidence is graded for CITY AND GUILDS OF LONDON INSTITUTE Produce engraved surfaces for precious metal objects
Every vocational unit is marked against named criteria rather than an exam percentage. Your tutor's brief lists the exact codes for this unit — here is what each band is asking you to do.
Demonstrate baseline knowledge, accurate terminology, and core practical application.
Provide detailed analysis, structured explanations, and clear workplace reasoning.
Deliver thorough evaluation, original problem solving, and fully justified recommendations.
Before You Start
Prior knowledge that will help with this topic
- •City & Guilds Level 2 Diploma in Jewellery Manufacturing or equivalent experience in basic metalworking and stone setting.
- •Understanding of gemstone properties (hardness, cleavage, refractive index) to avoid damage during setting.
- •Competence in using hand tools such as files, pliers, and gravers, plus basic workshop safety procedures.
Coursework AI Review
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Key Terminology
Essential terms to know
- Be able to prepare for the implementation of engraving processes, Be able to produce engraved surfaces
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