About RoCS

Our studio and workshop are based in the heart of Richmond at 238a Queen Street.  

Come and browse our hand selected pieces of jewellery and try on some of our expertly crafted designs.  You can talk to our staff about having something handmade, either from your old jewellery or a completely bespoke piece.

We specialise in one off designs and custom pieces, whether you are looking for a traditional diamond engagement ring or something that is uniquely yours then we are the jewellers to see.

Brett has over 17 years’ experience in the jewellery industry and a passion for the beautiful.  He is the only qualified gemmologist in the top of the South Island, with a diamond grading qualification, and one of the few in New Zealand with a diploma in Diamond Technologies.

So, for a true expert opinion on diamonds and gemstones come to where other jewellers come for help.


Brett Grimwood

F.G.A.A. F.G.A.  DipDT M.J.V.S.

Fellow of the Gemmological Association of Australia

Fellow of the Gemmological Association of Great Britian

Diamond Technologist- Gemmologial Assocaiton of Australia

Member Jewellery Valuers Society of New Zealand


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