What We Do
Bespoke Jewellery, Remodelling & Expert Repairs
We specialise in creating meaningful, handcrafted jewellery that reflects your story. Whether you're designing an engagement ring, remodelling heirloom pieces, or selecting a diamond, our on-site jeweller will guide you through every step.
Custom Engagement Rings
Wedding & Bridal Jewellery
Jewellery Repairs & Resizing
Jewellery Remodelling & Redesign
Diamond & Gemstone Selection
What's New?
Testimonials
Really great service at a good price. I took my heirloom gold there to be assessed and she helped shorten a necklace for me and fixed a ring. And I had my jewelry again in a week!
Demi Coetzee
8 Dec 2025
Thank you so much for designing and making me a beautiful Engagement ring in short notice! Excellent customer service, friendly, professional, and fair price (really affordable).
Tin Ma Ma Oo
18 Jul 2025
Needed a wedding ring on short notice and couldn’t have been happier with Cornerstone. Will definitely consider getting some more custom made jewellery through them in the future. They polished a 46 year old ring to new and made new one. Fair pricing and great service from start to finish! 10/10. Thank you team!
David Johnson
13 Jun 2025
I had my 9ct gold ring fixed, as it had been I'm drawer for years. She did a wonderful job at a reasonable price.Highly recommended.
Derrick Hodgson
21 Mar 2025
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Soft Studio — Interior & Object Styling Quiet design for everyday living Curation ⟡ Styling ⟡ Art Direction Paris ✦ Copenhagen ✦ Worldwide
↓ Spring Palette out now
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Quality Jewellery & Expert Craftsmanship
Whether you're searching for the perfect gift, need expert jewellery advice, or would like to discuss a repair or custom design, we're here to help.
Visit our St Heliers shop to explore our jewellery collection, or get in touch through our Contact page or by email. We'd love to help you find the perfect piece or bring your jewellery back to life.