Just Gems sells high-quality, certified diamonds & coloured gemstones, set in fine jewellery. We also offer a selection of rare & unusual natural gemstones which appeal to a discerning clientele.

Just Gems is owned and run by Helen Plumb, a gemmologist of international reputation, who is keen to share her knowledge & enthusiasm for gemmology with those interested in learning more at events. Just Gems was based in Aberdeen, Scotland but has now relocated to Winchcombe, in the Cotswolds.

Spectacular Boulder Opal

Just Gems sells high-quality, certified diamonds & coloured gemstones, set in fine jewellery. We also offer a selection of rare & unusual natural gemstones which appeal to a discerning clientele.

Just Gems is owned and run by Helen Plumb, a gemmologist of international reputation, who is keen to share her knowledge & enthusiasm for gemmology with those interested in learning more at events. Just Gems was based in Aberdeen, Scotland but has now relocated to Winchcombe, in the Cotswolds.

Boulder Opal Stud Earrings in Yellow Gold

Kunzite & Ethiopian Opal Pendant

8.78ct pear cut kunzite, set with 1.42ct pear cut cabochon Ethiopian opal, in 18ct white gold, suspended from 16” 18ct white gold anaconda chain

Paraiba Tourmaline & Diamond Ring in Platinum

4.02ct Oval cut Paraiba type, cuprian elbaite tourmaline set with 0.51ct E colour VS clarity diamonds in platinum

Late opening until 7pm on Thurs 21st - Sat 23rd. 10am-5pm on Wed 27th - Sat 30th

Closed otherwise Christmas over New Year. Open again from 2nd January 2018

Our Latest News

Thursday 23rd November

Shop opening hours are Tuesday to Saturday 10am-5pm.

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Upcoming Events

Tuesday 5th December ~ 2:00pm

Helen Plumb will be talking about Diamonds and Coloured Gemstones to a Ladies lunch club at Ombersley Golf Club on Tuesday 5th December at 2pm. Pease contact Veronica Wootton on 01905 453497 for more details.

See further details

Featured Jewellery

Black diamond briolette drop pendantPink topaz & chrysoberyl necklaceKunzite & opal pendantRuby & pearl pendant in goldShamrock pendant in rose goldDiamond slider pendant in 18ct white goldTourmaline & diamond pendantInlaid Black Opal EarringsRubellite & golden diamond ring in goldAmethyst & sapphire pendant in rose & white goldTanzanite & sapphire pendant in 18ct white goldRutilated quartz & sapphire pendant in 18ct white goldBlack opal and pink sapphire heart ring in platinumGolden pear cut diamond ringParaiba tourmaline & diamond ring in platinumKildrummy quartz, brown diamond and pink sapphire pendant in 18ct rose and white goldPink 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.

See Opening Times and Directions

From our customers…

Mrs S writes…

Thank you very much for the garnet cufflinks, my husband loves them.

Ms W writes…

We have to say that purchasing such a special ring in this way, was an ultimately personal experience that can not be easily replicated. We were so impressed by your knowledge, passion, enthusiastic and detailed approach providing us with a truly personal service to our purchase and we thank you immensely for that.


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