Jewellery Product Development jobs in London

Hybrid role working a minimum of 2 days a week from our office at Croxley Park, Watford

Are you passionate about beautiful products, commercially switched-on, and excited by the world of jewellery? This is your chance to join the UK’s leading specialist jeweller and help shape the future of our Diamond category for H. Samuel.

In this role, you’ll play a key part in developing and curating a stunning Diamond assortment that inspires our customers and drives performance.

Working closely with the Buyer, you’ll support end-to-end product development, analyse trends and trading performance, and help bring to life collections that feel fresh, relevant, and commercially strong. It’s an ideal opportunity for someone currently working as an Assistant Buyer or a Buyer’s Administrator who’s ready to step up and grow their career in a fast-paced, creative, and supportive environment.

About the Role:

You’ll work closely with the Buyer to support all aspects of the buying process — from range planning and product development to analysis and supplier management. Your input will help ensure our collections are commercially strong, trend-led, and perfectly aligned with our brand and customer.

Key responsibilities include:

• Assisting in the sourcing, development, and selection of products in line with the department strategy.
• Reviewing sales and product performance to identify opportunities that drive sales and profitability.
• Preparing product information and analysis for range reviews, sign-offs, and business presentations.
• Managing product samples and ensuring on-time delivery.
• Building and maintaining strong supplier relationships, attending meetings, and supporting negotiations.
• Conducting competitive shops and preparing analysis on market and trend insights.
• Supporting product launches and promotional activity, ensuring accurate information reaches stores and internal teams.
• Supervising and coaching the Buyer’s Administrator, helping to develop their skills and knowledge.

About You:

• You’re commercially minded, detail-oriented, and passionate about product.
  
• You thrive in a fast-paced retail environment and love turning data and trends into action.
  
• You’re confident working with suppliers, analysing numbers, and contributing ideas that shape the future of our Diamond collection.

We’d love to hear from you if you have:

• Experience as an Assistant Buyer ideally within retail or a branded environment.
• Strong analytical and numerical skills, with excellent Excel capability.
• Great organisational skills and the ability to manage multiple priorities.
• Strong communication and relationship management skills.
• A collaborative, proactive, and commercially focused mindset.
• Experience in supplier negotiation and an eye for detail and product quality.

We offer a fantastic job and more…

We are passionate about our profession, and together we can help you realise your full potential. Come and be part of Signet Jewelers and enjoy the following fantastic benefits:

• Competitive salary
• Generous discount of up to 30% off our fabulous products from day one.
• An annual enhanced discount to celebrate the day you joined our team.
• Retirement Savings plans which offer flexibility in the way you save for the future.
• Immediate Life Assurance from day one.
• A minimum of 22 days holiday per year which increases after a years’ service.
• Recognised qualifications, study support and structured career progression.
• Health and Wellbeing Scheme.
• Financial Wellbeing scheme.
• Give As You Earn scheme – An easy way to support causes close to your heart.
• Real Rewards - exclusive discounts on groceries, travel and leisure.

Be part of something special!

Signet is the name behind H. Samuel and Ernest Jones. Together, we have more than 270 stores in the UK and Republic of Ireland. But that’s not all, we are part of the world’s largest retailer of diamond jewellery with approximately 2,800 stores. Just imagine where your career could take you

Signet Jewelers (H. Samuel & Ernest Jones) is an equal opportunity employer committed to diversity and inclusion.

We welcome applications from all sections of the community and are proud to have achieved Disability Confident Committed status (Level 1). All employment is decided on the basis of qualifications, merit and business need.

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