JRC was started by Jonathan Mahoney at Merthyr Market in the 1960s. Sixty-plus years on, his daughter Rowena Mahoney, AJP-qualified and a Retail Jeweller Rising Star, runs the bench-floor at 18 High Street, Cowbridge. Father and daughter, one family name. Brown & Newirth bridal. Bespoke designed in CAD, cast in-house. Repairs across the counter.
The shop opens in the 1960s, when Jonathan Mahoney starts trading at Merthyr Market in the Welsh valleys. A stall at first, then a counter, then a name. Sixty-plus years on, the business is run with his daughter, Rowena Mahoney, who holds an AJP qualification from the National Association of Jewellers and was named to the Retail Jeweller Rising Stars 30 Under 30 in both 2020 and 2023. Eleven years on Cowbridge High Street. Two years at the new 18 High Street showroom, three times the size of the old one a few doors down. The same family. The same name.
We really love jewellery. We also love Cowbridge and the people who live here or visit our town.
The independent retail jeweller award, judged on customer service, range and community standing. Wales and Southwest, 2023.
Heirloom remodelling is the work we hear back from customers about the most. A grandmother\u2019s engagement stone reset into a granddaughter\u2019s wedding band. A mother\u2019s gold melted down and re-cast for her daughter. Three details a non-expert might not think to ask about, that we are uncommonly careful with:
We first met her about thirty minutes after getting engaged. She spent ages with us letting me try every different type on.
I had my wedding band made out of my mum’s jewellery. She knew exactly what I wanted, brought my vision to life.
Repair on my diamond solitaire mount, minimum of fuss and returned cleaned.
Whether it is a repair you can drop into the shop, an heirloom you would like remodelled, a Brown & Newirth bridal pairing you want to try, or a piece you would like commissioned from a sketch, send us the details below. A photograph of the piece, if you have one, is the single most useful thing you can include.
Thank you. Your enquiry is in. We will come back to you from jrcjewellery@hotmail.com within one working day. The shop is closed Mondays and Sundays; an enquiry sent over the weekend will come back on Tuesday morning.
Private viewings outside hours by appointment for bridal commissions. The bench day is Monday, by appointment for the larger bespoke jobs.
Both. Every Brown & Newirth piece, which is our headline bridal collection, carries a manufacturer lifetime guarantee and a year of insurance bundled into the price at the point of sale, not a JRC promise alone. On bespoke commissions designed in-house, JRC covers workmanship and stone-setting integrity. The paperwork is across the counter when you collect the piece.
Yes. Heirloom remodelling is one of the things we hear back from customers about the most. The stone is examined first; if it is sound, we design in CAD around it, show you the model on screen before any metal is committed, and reset by hand at the bench. The metal in the original piece can be melted and used too, if it suits the new design. Ellie’s wedding band, made out of her mother’s jewellery, is one of the pieces we keep coming back to.
Often, yes. Smaller jobs (a new clasp, a sizing-down, a chain link) turn around the same day, sometimes while you walk over to a Cowbridge cafe. Larger work (a shank rebuild, a stone replacement, a claw retip on an inherited setting) is quoted across the counter before we begin, and timed against any other commissions on the bench that week. The shop is closed Mondays and Sundays.
Ti Sento, the modern Dutch jeweller known for seasonal coloured-stone pieces, names one ambassador per region. The status means we receive new-collection allocations earlier than most UK stockists, and we get the seasonal sample stock so you can try a piece on the day it lands rather than ordering blind from a catalogue.
Rowena holds an AJP qualification from the National Association of Jewellers. Stone selection is led by the four Cs (carat, colour, clarity, cut) across the counter, with certificate paperwork talked through in person before the stone is committed to a setting. Larger certified diamonds are sourced to specification, usually within days.