Diamond & Gemstones Certificates
Types of certificates and lab reports available
All diamond and gemstone jewellery supplied by Lloyds will come with a certificate of authenticity which doubles as a certificate for insurance replacement.


Example of the Lloyds Family Jewellery certificate
We can supply a Lloyds Family Jewellery valuation report and authenticity certificate on request for items purchased from our website (charges may apply). Our certificates declare that "Items specified in this document are authentic. All materials used are genuine and metals over minimum weights are UK Assay hallmarked. Diamonds & gemstones supplied are conflict free. Value is current at the under mentioned date." The certificate will show the full retail replacement Value of the item, not the purchase price. We can remove values or change the name and address if required as a gift.


Why are some items not supplied with a Laboratory Certificate?
The vast majority of diamonds supplied within the jewellery industry are classed as uncertified, meaning they have not been assessed by an independent grading laboratory. This does not mean the diamonds are of unknown quality, as all diamonds are initially assessed, graded, and sorted by the diamond cutters and suppliers during the manufacturing and distribution process before being supplied to retailers. Only a very small percentage are later submitted to independent laboratories such as the Gemological Institute of America (GIA) or International Gemological Institute (IGI) for additional grading and certification.
Uncertified diamonds are particularly common in jewellery containing multiple or smaller diamonds, as laboratories often have limitations on the size and number of stones that can be certified within a single piece, and the cost of certification can outweigh the value of the individual diamonds themselves. Independent laboratory certificates also carry additional costs which can increase the overall price considerably.
Coloured gemstones such as Sapphire, Emerald, and Ruby are also not routinely supplied with laboratory certificates. Unlike diamonds, there is no universally standardised grading system for coloured gemstones, and professional laboratory testing can be very expensive. For this reason, certification is generally reserved for larger or particularly high value gemstones.
For bespoke jewellery we can supply certificates from a number of Laboratories:


Many of our 18k and Platinum jewellery is EDR approved (this will be stated on the item specification) meaning the diamonds have been assessed by EDR as an impartial third party, they will confirm the colour, clarity and total weight of the diamonds. Certificates can be supplied for an additional cost of £25 for a small credit card sizes certificate, these can be requested at any time as all details are kept on file for each piece of jewellery. One certificate is supplied for the complete piece as our jewellery uses matching grade diamonds. Please note gemstones are not included on the certificate.
Message from EDR: Our reports give you peace of mind and confidence that our professional and experienced Gemmologists can provide you with all the relevant details that you require about your diamonds. At EDR we use the latest Diamond Grading tools in our fully equipped Laboratory, so you can be safe in the knowledge of our professionalism in giving you the most accurate details of your diamond. EDR has a fully equipped diamond grading laboratory, located in Hatton Garden, the UK's diamond centre. Ultimately our aim is to provide a service of re-assurance for the authenticity and quality of diamonds we grade.




WGI diamond reports cover the four C’s which are cut, colour, clarity and carat weight as well as an In-depth diagram which will give you a clear measurement and understanding of the diamond’s proportions. Prices vary depending on the size and detail of the certificate, please note grading is restricted depending on whether the diamond is loose or mounted
For over the past 30 years the World Gemological Institute (WGI) along with our team of expert staff and Gemologist have build a solid standing reputation as one of the leaders in the Industry. Our appraisals and lab reports are recognized worldwide by insurance companies, retailers, private jewelers and wholesalers.




Each diamond is scientifically analysed by several gemmologists who use their experience combination with state-of-the-art equipment to produce an accurate description of the characteristics of the diamond and the quality of its cut. With its detailed information presented in understandable language, the different qualities of a diamond can be truly appreciated.
The IGl Diamond Report is essentially a statement attesting to the authenticity of a diamond and provides a reliable and accurate report of its identity and grade based on an internationally recognized system.




For more than 50 years, fine jewellers everywhere have considered the GIA Diamond Grading Report the premier credential of a diamond’s authenticity and quality.
The GIA Diamond Grading Report includes an assessment of a diamond’s 4C’s – colour, clarity, cut, and carat weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond’s proportions. For standard round brilliant cut diamonds falling in the D-Z colour range, the report also includes a GIA Cut grade.
The GIA laboratory issues diamond grading reports for loose, natural diamonds in the D-Z colour range that weigh 0.15 carats or more. GIA Diamond Grading Reports are not issued for synthetics, simulants, mounted diamonds or those that have undergone unstable treatments, such as fracture filling or coating. And while reports may be issued for diamonds that have been laser drilled or HPHT processed, these stable treatments are prominently disclosed on the report.


www.diamond-reports.com | www.anchorcert.co.uk | www.igiworldwide.com | www.gia.edu