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Engagement Rings
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95 Products shown

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Price Starting at $ 281
0.10ct. Prong Setting Round Diamond Delicate Bracelet - HG0638_A16

Price Starting at $ 281
wishlist

Price Starting at $ 291
0.20ct. Full Bezel & Prong Setting Round Diamond Delicate Pendant - HG0644_A38

Price Starting at $ 291
wishlist

Price Starting at $ 280
1.90mm Studded Slight Comfort Fit Diamond Shaped Band - HG0620_A19

Price Starting at $ 280
wishlist

Price Starting at $ 719
2.10mm Studded Slight Comfort Fit Diamond Wedding Band - HG0608_20

Price Starting at $ 719
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Price Starting at $ 373
2.20mm Studded Flat Profile Diamond Shaped Band - HG0648_A15

Price Starting at $ 373
wishlist

Price Starting at $ 602
2.50mm Studded Flat Profile Diamond Shaped Band - HG0530_A32

Price Starting at $ 602
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Price Starting at $ 835
3 Prong Setting Plain Engagement Ring With Matching Band - HG0606_13

Price Starting at $ 835
wishlist

Price Starting at $ 489
3 Prong Setting Plain Engagement Ring With Matching Band - HG0651_A16

Price Starting at $ 489
wishlist

Price Starting at $ 519
3 Prong Setting Stud Earring - HG0636_91

Price Starting at $ 519
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Price Starting at $ 1,511
3 Prong Setting Stud Earring - HG0651_11

Price Starting at $ 1,511
wishlist

Price Starting at $ 561
4 Prong Setting Half Eternity Black Diamond Ring - HG0644_46

Price Starting at $ 561
wishlist

Price Starting at $ 414
4 Prong Setting Half Eternity Diamond Ring - HG0648_23

Price Starting at $ 414
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Price Starting at $ 4,216
4 Prong Setting Halo Pendant - HG0585_26

Price Starting at $ 4,216
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Price Starting at $ 1,731
4 Prong Setting Large Side Stone Engagement Ring - HG0614_16

Price Starting at $ 1,731
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Price Starting at $ 1,335
4 Prong Setting Medium Side Stone Engagement Ring - HG0508_A20

Price Starting at $ 1,335
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Price Starting at $ 1,232
4 Prong Setting Medium Side Stone Engagement Ring - HG0613_28

Price Starting at $ 1,232
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Price Starting at $ 1,621
4 Prong Setting Medium Side Stone Engagement Ring - HG0619_35

Price Starting at $ 1,621
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Price Starting at $ 1,883
4 Prong Setting Medium Studded Engagement Ring - HG0632_29

Price Starting at $ 1,883
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Price Starting at $ 698
4 Prong Setting Plain Engagement Black Diamond Ring - HG0644_49

Price Starting at $ 698
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Price Starting at $ 2,288
4 Prong Setting Plain Engagement Ring - HG0606_P36

Price Starting at $ 2,288
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Price Starting at $ 672
4 Prong Setting Plain Engagement Ring - HG0604_11

Price Starting at $ 672
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Price Starting at $ 5,549
4 Prong Setting Plain Engagement Ring - M_1637

Price Starting at $ 5,549
wishlist

Price Starting at $ 639
4 Prong Setting Plain Engagement Ring - HG0643_42

Price Starting at $ 639
wishlist

Price Starting at $ 1,572
4 Prong Setting Plain Halo Black Diamond Ring - HG0625_P23

Price Starting at $ 1,572

95 Products shown

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Assay Office London

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)

Where Hallmarking Began

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'ss 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.

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