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We’ve teamed up with Klarna to provide flexible payment options, allowing you to shop the way you want. With Klarna, you can split your payment into 3 instalments or choose to pay later, making your shopping experience smoother and more convenient. Your order total must be between £100 and £499 to qualify.
We’ve teamed up with Klarna to provide flexible payment options, allowing you to shop the way you want. With Klarna, you can split your payment into 3 instalments or choose to pay later, making your shopping experience smoother and more convenient. Your order total must be between £100 and £499 to qualify.
December 04, 2024 | by Admin
It is law within the UK that every item of precious metal sold such as Platinum, Gold, Silver is stamped labelling the item with the type of metal it is. Platinum pieces which weigh less than 0.5 grams, 18ct Gold and Palladium pieces weighing less than 1.0 gram and Silver pieces weighing less than 7.78 grams are except from hallmark.
At Diamonds Factory all our products are hallmarked as per UK hallmarking law from London Assay Office (The GoldSmith Company)
The Goldsmiths' Company Assay Office is the oldest assay office in the United Kingdom. It has provided hallmarking services since The Goldsmiths' Company was founded in the 1300s. The company received its royal charter in 1327 and ranks 5th in order of precedence of the 12 Great Livery Companies of the City of London.
Hallmarking dates back to the 1300s when Edward I of England passed a law requiring any item made of silver, which was offered for sale, to be at least of equal quality as that of the coin of the realm (silver currency). The wardens of The Goldsmiths' Company were tasked with visiting workshops in the City of London to assay (test) silver articles. If these articles were found to be below standard they were originally destroyed and the metal forfeited to the King. If they passed, each article received the King's mark of authentication - the mark of a leopard's head. By 1478, there were several hundred workshops and merchants manufacturing silver articles in the City of London. It was not possible for the wardens to visit them all so the merchants were ordered to bring their items to Goldsmiths' Hall for testing and marking and a permanent Assay Office was established in the building. This is the origin of the term hallmark - struck with the King's mark at Goldsmiths' Hall.
In 1544 the Goldsmith's Company adopted the King's mark as their town mark and the mark of the leopard's head is now internationally recognised as the mark of this assay office.
The Goldsmiths's Company Assay Office is still based at Goldsmiths's Hall and remains the oldest company in Britain to be continually trading from the same site. However, it also has two satellite offices; at Greville Street in Hatton Garden in the heart of the London jewellery quarter and within a high security complex near London's Heathrow airport. It now has a new off-site facility within the Dalston-based jewellery manufacturer, Allied Gold. This is the first time in the Assay Office's 700 year history that it has opened permanent hallmarking services on a customer's premises.
In addition to hallmarking, the office has now expanded its range of services to support the jewellery trade and enforcement authorities. It offers a variety of specialist analytical services including nickel, lead & cadmium testing, antique silver dating, non-destructive compositional analysis, plating thickness measurement and a melt and assay service for scrap precious metal carried out in their fully independent on-site laboratory. Other services offered are a jewellery valuation service, laser marking, trading standards assistance, high quality photography and a comprehensive range of training and educational seminars, lectures and specialist events.
If you’re born in January, you’re lucky enough to claim one of the most beloved gemstones as your birthstone: garnet. Known for its deep, rich hues and symbolic meaning, garnet has been treasured for centuries. Whether you’re looking for a meaningful gift for someone special or you just want to learn more about the captivating stone, our January Birthstone Spotlight is here to help.
Prong Setting Garnet Three Stone Ring
From £396
4 Prong Setting Oval Garnet Pendent
From £162
4 Prong Setting Round Garnet Stud Earring
From £100
4 Prong Setting Oval Garnet Tennis Bracelet
From £1,899
Bezel Setting Garnet Halo Engagement Ring
From £798
Prong Setting Pear Garnet Pendant
From £199
Marquise Shaped Garnet Diamond Hoops
From £778
4 Prong Setting Pear Garnet Tennis Bracelet
From £4,143
History And Symbolism
Why Garnet?
When it comes to colour, garnet’s intense red hue makes it a distinctive gemstone that’s sure to stand out. Whether set in yellow gold, white gold, rose gold or platinum, it shines beautifully, complementing an array of styles and occasions.
As the birthstone of the month, garnet holds personal significance for January babies and makes a thoughtful gift for those celebrating their birthdays. Additionally, with its passionate symbolism, garnet jewellery is ideal as an engagement or anniversary gift.
How To Care For Your Gemstone

Garnet is relatively easy to care for, however, like all gemstones, it does require some attention to maintain its allure for years to come. Here are our top tips to keep your garnet jewellery looking its best:Our Garnet Jewellery
Explore our curated offering of garnet jewellery and find something special today!