Design
Custom jewellery design covers everything from concept to finished piece. Many jewellers can guide you through stone and metal options, then create made-to-order designs to suit your style and budget.
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About Cosimo
Cosimo Mirarchi is a Sydney-based designer and Master Jeweller with a deep passion for craftsmanship and design excellence. His journey began at the age of 19, when he discovered his love for jewellery and the art of creating pieces that hold personal meaning and timeless beauty.
For more than a decade, Cosimo has designed and produced bespoke luxury jewellery for clients across Australia. His expertise and dedication are reflected in every piece, each one crafted with precision, creativity, and a commitment to capturing the unique stories of those who wear them.
At COSIMO, the focus is on diamond artisan bespoke jewellery, including engagement rings, luxury baptism crosses, and elegant chains. The studio also offers expert repair services for both jewellery and watches, maintaining the same standard of care and quality that defines every creation.
Services
Services explained
Below is an overview of the jewellery services offered by this store.
Online Shop
An online shop lets you browse and purchase remotely, often with delivery Australia-wide. Before buying, check sizing guidance, delivery timeframes, returns, warranties and aftercare.
Repairs
Repairs can include resizing, clasp replacement, chain repairs, polishing, re-stringing and stone re-setting. Ask about turnaround time and whether repair work comes with a service warranty.
Shop
In-store shopping is ideal if you want to see pieces in person and compare options with guidance. Many jewellers can advise on fit, styling, care, and gift ideas while you browse.
Jewellink Reviews
Add a review
Share what stood out, from service and pricing to the finished piece. A quick review helps the next shopper know what to expect.
Google Reviews
5 ★
(63 Google reviews)
View on Google
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Raechel Ferraro 5 ★ 2026-02-16We couldnu2019t recommend Cosimo more highly. He designed and crafted my engagement ring as well as our wedding bands, and the entire experience has been incredible from start to finish.nnHis professionalism, attention to detail, and craftsmanship are truly exceptional. He listened carefully to what we wanted and created rings that are not only beautiful, but so meaningful to us.nnWe are absolutely in love with our rings and feel so grateful to have had someone so talented bring them to life. Highly, highly recommend!
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Anthony P 5 ★ 2025-11-12Amazing craftsmanship, friendly service, honest advice, great value for money, and delivered right on time u2013 exactly as promised!nnI went to see Cosimo about creating an 18ct rose gold ring for my wife. He crafted the ring based on a similar one she had u2013 my original promise ring from our first trip to Italy, which had unfortunately degraded over the years.nnFrom our very first consultation, Cosimo impressed me with his creativity and professionalism. He provided detailed sketches, a 3D video, and thoughtful advice on how to achieve the best possible result within budget u2013 all without compromising on quality or design.nnThe final ring was absolutely stunning, and when I surprised my wife with it, she loved it!nnThank you so much, Cosimo u2013 you made something truly special for us.
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Katherine Tortura 5 ★ 2025-09-29We are absolutely thrilled with our rings! Cosimo made both my engagement ring and our wedding bands, and they are just stunning.. beautiful, timeless and such high quality. The craftsmanship and attention to detail are incredible, and the whole experience was so enjoyable and easy. We couldnu2019t be happier and highly recommend them to anyone looking for something truly special.
Contact Details
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Open hours today: 9:00 am - 5:00 pm
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Monday
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Tuesday
9:00 am - 5:00 pm
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Wednesday
9:00 am - 5:00 pm
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Thursday
9:00 am - 5:00 pm
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Friday
9:00 am - 5:00 pm
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Saturday
9:00 am - 2:00 pm
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Sunday
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April 22, 2026 6:55 pm local time
Location
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195 Great North Road, Five Dock New South Wales 2046, Australia
Contact
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