Ruby & diamond ring

Top quality cushion cut ruby from Mozambique. Ruby weighs 3.04ct and is accompanied by an American Gem Laboratory report confirming that the ruby is natural and UNHEATED. Ruby is surrounded by 1.5ct of G colour VS clarity diamonds, mounted in an 18ct yellow and white gold ring. This is an exceptional quality investment grade ruby of vivid red colour. My customer could not find better anywhere!

Our Latest News

Thursday 4th April

Our summer opening hours are Tuesday to Saturday 10am to 5pm, outside those hours we are pleased to open by appointment On Wednesday 17th July we will be closed in the morning due to a speaking engagement in Dursley. On Wednesday 17th July our shop will open 12.30 to 5pm.

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Upcoming Events

Saturday 13th July ~ 12:00pm

2024 Gem Talks - third quarter talks will be in Alcester, Dursley, Frampton on Severn, Malvern Wells, Mickleton, Radley, Cirencester, Hanley Swan, Quedgeley, Pershore, Rodway, Droitwich and Painswick. We are taking bookings for 2025, please contact helen.plumb@just-gems.co.uk or call 07732 835704 if you would like to book Helen to give your group a talk on Gems they will enjoy and remember. Please check the feedback on our latest talks on the About/Testimonials page of our website.

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Featured Jewellery

Sea green tourmaline & diamond ring in white goldPink spinel & cushion cut diamond ring in platinumNatural yellow zircon & diamond pendant in platinumBlack opal ring in 18ct yellow goldSpectacular aquamarine briolette & diamond pendant in platinumTsavorite & diamond cluster ringSapphire & diamond cluster ring in 18ct yellow goldWood opal pendant in palladium & 18ct yellow goldWatermelon tourmaline cabochon cufflinks in silverBlack opal and pink sapphire heart ring in platinumPink sapphire & Tahitian pearl pendant in 18ct white gold

Explore all our Jewellery

The Just Gems Shop

27 North Street, Winchcombe, Gloucestershire

The shop has a wide selection of carefully sourced unmounted gems. If you would like to choose a loose gem in any size, shade or cut, we have a large number of suitable stones just waiting for you! Our gems are collected from personal contacts of Helen Plumb, relationships she has developed over more than twenty years of working with the international gemmological trade. Wherever possible, our stones are ethically sourced and many come from known mines in Brazil, Afghanistan, East Africa, Sri Lanka and elsewhere.

We also love pearls at Just Gems, and offer a matching service to make up earrings, bracelets, pendants or necklaces that will enhance your own pearl jewellery. We restring pearls in our workshop and can replace or repair damaged clasps. Please note that we only mount natural gemstones and restring real pearls (cultured or natural) and gemstones. We do not work with simulants.

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From our customers…

Mrs B writes…

I lost my engagement ring. I had often walked past ‘Just Gems’ in Cults, Aberdeen but following the loss, I decided to have a look in the shop window to see if there was any ring on show similar to mine. Although the shop was officially closed, Helen welcomed me into the shop to discuss what I required.
It was immediately apparent that Helen was an expert and knew precisely what I was looking for. She showed me stones which would have been good replacements but she thought she could do better if I could wait. Following a trip to Burma, Helen phoned to say that she had sourced stones which she thought would suit me. I was not disappointed. We discussed the design of the new ring and she was able to show me a computer simulation of what the final ring might look like.
I was thrilled with the ring when it arrived after a few weeks. It is almost identical to the ring I lost. I could have gone to high street jewellers and bought a ring similar to the one I lost but I was pleased that I went to Helen Plumb at Just Gems. There I got excellent service from someone who obviously knew her business. The workmanship on the ring is first class and my ring has been admired by many.
It is a pity that Just Gems is moving south but what is Aberdeen’s loss will be the Cotswolds gain. We wish her all the best for a successful business in Winchcombe.

Mrs A writes…

I still wear the beautiful opal earrings that you made for me and it is seldom that nobody remarks on how lovely they are.


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