Unheated sapphire & heart cut diamond ring in platinum
4.82ct cushion cut blue sapphire with Gem & Pearl Laboratory report confirming that the sapphire is unheated, flanked by 0.90ct pair of heart cut diamonds in F colour VS clarity. Gemstones mounted in platinum ring, wedfit. It is rare to find such a sparkling and exquisite unheated sapphire of this quality. Price £17,999
Our Latest News
Thursday 2nd April
To celebrate 20 years of trading, Just Gems is having a SALE. There is 50% off certain pieces of jewellery. Search on SALE in Design drop down on our jewellery page.
Upcoming Events
Thursday 2nd April ~ 12:00pm
2026 Gem Talks - second quarter talks will be in Droitwich, Henley-in-Arden, Aston & Cote, Hook Norton, Longford, North Woodchester, Minchinhampton, Shutford, Cradley, Abberley, Avening, Upton St Leonards & Charlton Kings. We are taking bookings for the first quarter of 2027, 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.
Featured Jewellery
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 DirectionsFrom our customers…
“Ms M writes…
Now we’re back in the US, I had my ring appraised a few weeks ago for our insurance company. The appraiser was a GIA grad with 25 years experience and said it was one of the finest hessonite garnets he had ever seen. The replacement value – $8,400.00 USD! I have had many people ask me where I got it – and I always give them your name and web address.
“Mrs M writes…
After a burglary I wanted some new jewellery but I am not keen on much that you see in the High Street. Helen came to our WI meeting and was so enthusiastic and knowledgeable about gemstones that I thought it would be fun to visit her and see the jewellery in person. I was not disappointed; and although spoilt for choice I decided on Australian opals for a pair of stud earrings. I am very pleased with them as they have fire and a depth of colour that I have never seen in opals in any shop. My unique earrings give me pleasure each time I wear them.
Read More Testimonials