Repair, Design and Valuation

“I’m so pleased that you were able to repair it, and so quickly too”

We are pleased to be able to offer you the full benefit of our experience and expertise in the form of our professional jewellery repair, design and valuation services. We provide quick turnaround times at very reasonable rates. Ours is one of the few professional on-site insurance valuation services in the Market Harborough district. Home valuations are also available upon request. For more information regarding any of our services, come into the shop or call us on 01858 468858.


Jewellery Repairs 
Examples of jewellery repairs we undertake:
• ring sizing/adjustment
• ring cleaning and polishing* (*available on the premises)
• chain repairs
• matching missing stones 
• rethreading pearls 
• remodelling or redesign
• renewing worn claws
• new clasps
• hand engraving

This work is carried out on our behalf by fully qualified professionals, with the majority of minor repairs being completed within 7 – 10 days. Verbal and written quotes are free. All items are fully insured upon receipt. If you wish to discuss a repair please contact us.

We work closely with Insurance Companies too, in the event of loss or damage, and we can provide a letter for you to assist with completing your claim. T J Thornton Ltd is a member of the Loss Management Group (LMG) approved service partners.

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Watch & Clock repairs

• watch battery replacement while you wait (excluding reseal/water test)
• bracelet adjustments
• leather watch straps by Hirsch
• watch glass replacement
• watch servicing for all makes, mechanical and quartz movements
• 8 day mantle, wall and long case clock service and repairs


Unique, custom-made jewellery is another important part of our service. For example, we can mount gemstones into the piece of your choice, or shape a wedding ring to curve around your engagement ring. We can modify almost any piece of jewellery and even create a new piece from scratch to your own specifications and requirements. Ask us for more details.
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Valuation Service

We carry out all valuations on the premises, for Insurance, Probate and Family Division. For our competitive fee structure please contact us.

Useful Information

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Diamond grading charts

UK Hallmarking Standards

We have our Sponsors Mark (TJT) held at the Birmingham Assay Office which is used for our handmade pieces, ensuring the company’s name plays its part in the long tradition and history of British hallmarks
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Gemstone Anniversaries 

25 years – Silver
30 years – Pearl
35 years – Coral
40 years – Ruby
45 years – Sapphire
50 years – Gold
55 years – Emerald
60 years – Diamond
Or if in doubt, make it a diamond!

Birthstones of the month

Call our experts on 01858 468858 now!

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