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.
Large Sapphire & Diamond Ring
11.47ct cushion cut Sri Lankan sapphire set with 1.13ct triangular diamond pair, diamonds G colour VS1 & SI1 clarity, in 18ct white gold. POA
Ruby & Diamond Ring
3.03ct ruby from Mozambique (independently certified to be unheated) set with a 1.00ct pair of heart cut diamonds (GIA certified D & E colour SI1 clarity), in 18ct rose gold and platinum. POA
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
Our Latest News
Thursday 8th March
In today’s blog, Helen gives a background on aquamarine – March’s birthstone; a beautiful stone that ranges in colour from green to a blue.
Upcoming Events
Saturday 9th November ~ 9:00am
Helen Plumb pf Just Gems will be one of a number of speakers at the forthcoming Gemmology Symposium hosted by the Scottish Gemmological Association at the Royal Scots Club, 29-31 Abercromby Place in Edinburgh on Saturday 9th November 9.30am-4pm. Details are available online at scottishgemmology.org/symposium-1
Tickets are £40 and include a light lunch. The Symposium is timed to coincide with the Elements Jewellery & Silversmithing Fair held at Lyon and Turnbull’s premises at 33 Broughton Place in Edinburgh. Delegates are encouraged to attend this event later in the afternoon.
Featured Jewellery
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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 DirectionsFrom our customers…
“Mrs K writes…
Dear Helen
I have just returned home after a splendid weekend in Edinburgh celebrating my birthday with my son and his fiancée. On Saturday evening we dined at Prestonfield House. The candlelight was just the perfect medium to show off your superlative pendant which I absolutely love. It was presented to me whilst sharing a champagne toast before we went into dinner, so I had to wait until I could skip out to the powder room to admire it. Thank you so much. It really is quite stunning.
“Mrs C writes…
Thank you for sending the ring to me. It is absolutely beautiful and I am happy with the ring size. It not tight at all and actually a little loose, which is how I like to wear my rings. Thank you.
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