About LDE

London DE is the UK’s leading supplier of certified diamonds, emeralds, rubies, sapphires and other coloured gemstones.  We ethically source and supply loose stones and create bespoke items of handmade jewellery in our workshops in London’s Hatton Garden.

Building on our unique set of relationships within the industry, we can deliver gemstones and jewellery at a price well below that of traditional high street retailers.  Each piece that we create is unique, hand-made and never replicated.  We also offer a selected range of ready to wear jewellery, in addition to bespoke pieces.

We draw on the knowledge, skills and experience of our team to engage with our customers in a professional and consultative manner in order to deliver the highest standards of service and aftercare.

LDE Phil Spencer ACSI, BA Hons

LDE Phil Spencer ACSI, BA Hons

Director and Founder

Phil has developed a broad wealth of experience in gemstones, jewellery, financial services and the armed forces.  Graduating from University College London in 2003, he subsequently served as a Commissioned Officer in the Royal Navy, prior to working in the financial services sector as a Stock Broker and Wealth Manager, both in the City of London and Dubai.  Phil founded LDE in 2013 out of a lifelong passion for precious gems and jewellery.  Phil is also a director of LDE’s sister company, Hexa Resources Limited, with direct mining exploration and production licences.  This offers a unique level of vertical integration along the lengthy gemstone supply chain, from mine-to-market.

Phil combines his business interests with his part-time role as an Amphibious Warfare Officer in the Royal Naval Reserve.  He is a keen yachtsman, having completed a number of offshore races; he has also travelled extensively and enjoys reading and studying his profession.

Rory Dyer – Sales Director

Born and raised in Gloucestershire, Rory gained extensive experience as a financial broker in both the UK and Germany, before co-founding IEEX emeralds and organising the sales function of LDE.  Rory has developed a client base of both retailers and end consumers across the globe and has enjoyed considerable success in supplying coloured gemstones to the UK, Chinese and Hong Kong markets.

Rory has also been engaged in the establishment of emerald mining interests in Colombia and he is looking to replicate this model in the South East Asian and East African coloured gemstone production centres.  Rory forms a crucial link in the vertical integration of LDE’s business model, sitting on the boards of several key businesses along its value chain.

John Le Parc – Gemmologist & buyer

John was born in the South of France, from Colombian parents.  John’s family instilled in him the cultural values of Colombia and cultivated his interest in the rare emerald gemstone, which is found in the heart of Colombia and worshipped by the indigenous peoples.  John became passionate about emeralds when he was 10, during a trip in Colombia when he saw for the first time the gemstone in the hands of a dealer.

From that moment on he decided that his life would gravitate around gems.  He decided to study International Business in France and then moved to London to follow a course at the Gem-A Gemmological Institute to become a gemmologist, whilst simultaneously building practical experience in the jewellery and gemstone industry.

Orlando Cifuentes – Gem grader – Colombia

Orlando is a Colombian with a passion for emeralds.  Based in Bogotá, Orlando has over 30 years’ experience grading, cutting, polishing and exporting the finest Colombian emeralds.  In a market that is highly opaque and notoriously difficult to navigate, specialists with decades of practice and technical knowledge of the first degree are essential to buying the right stones at the right price.

Orlando can instinctively sort a highly valuable emerald from one that is of lower quality in seconds, a skill that enables the best loose stones to be selected for onward distribution and export.  Once Orlando has identified the cream of the ‘crop,’ these stones are then sent for laboratory testing to provide indisputable black and white evidence of their provenance and true market value.

Victoria Mellor – Head of Planning & Strategy

With over 20 years experience in business development, and building and managing international and cross-cultural teams for both public and private sectors, Victoria brings a global focus to the sales, planning and strategy needs of LDE.  She has a background in defence and international security, with academic publications and lecturing appointments in risk management, applied psychology and counterterrorism.

Victoria has spent extensive time working in China, Turkey, and the Middle East as well as periods in Africa and Europe, and holds a research fellowship at FEDI in India. She speaks Mandarin and Arabic, and is currently based in Southeast Asia.

Annabel Spencer – Company Secretary & Compliance Manager

Annabel is a Chartered Company Secretary by profession.  Having read Classics at University, Annabel went on to complete a GDL Law Conversion Degree, prior to completing the ICSA Corporate Governance Qualification.

She has developed a broad range of industry experience, having worked for travel technology companies, legal firms and financial publishing houses.  She performs the Corporate Governance function for LDE on a part-time basis.



UK Enterprise Awards 2018

We were thrilled to be awarded “Best Diamonds & Emeralds Supplier 2018” in the UK Enterprise Awards this year.  In the words of the founders:

“The UK Enterprise scene is one to be admired, with new and exciting market sectors emerging daily.  It takes courage, drive and dedication to thrive.  UK based enterprises are renowned for their diversity and ability to progress through tough times.

Every one of our award winners can be rest assured that their recognition was truly deserved, as we carefully evaluate everything from their performance over the past 12 – months, their commitment to innovation, their methods and even their competition to ensure that only the most deserving names walk away with one of our prestigious accolades.”

KPMG SME Awards 2016

We were proud to have been finalists in the categories of “start-up, one to watch” and “entrepreneur of the year” in the 2016 KPMG SME Awards.

“The SME Awards recognises excellence from right across the business landscape from social media and sales growth to customer experience and export, highlighting the innovative and imaginative business models and working practices.

Making the SME Awards shortlist is a mark of originality, personality, excellence, professionalism and trust.  These are companies that stand out from the crowd as ambitious, tenacious business entities that want to make their mark on the world.”

National Association of Jewellers

The NAJ lead, serve and represent the jewellery industry by promoting, protecting and providing for its members through offices in London and Birmingham, supported by both a strong internet presence and social media. 

We were delighted to be shortlisted in the 2017 National Association of Jewellers (NAJ) Awards in the category of “Jewellery and Watch Supplier of the Year.”

National Association of Jewellers

We were delighted to win the 2018 National Association of Jewellers (NAJ) Awards in the category of “Jewellery and Watch Supplier of the Year.”

The NAJ lead, serve and represent the jewellery industry by promoting, protecting and providing for its members through offices in London and Birmingham, supported by both a strong internet presence and social media.


The Goldsmiths’ Company

We have the unique “LDE” hall mark with the London Assay Office.

Founded to regulate the craft or trade of the goldsmith, the Goldsmiths’ Company has been responsible since 1300 for testing the quality of gold, silver, from 1975, platinum, and from 2010, Palladium.

Federation of Small Businesses

LDE is an active member of the FSB. The FSB is a powerful voice in government and their mission is to help smaller businesses achieve their ambitions.

Established over 40 years ago to help their members succeed in business, the FSB is a non-profit making and non-party political organisation that’s led by its members, for its members.



All of our stones are certified by one (or more) of the world’s leading gemmological laboratories.  This is essential to demonstrate the origin and the key characteristics of a gemstone.

These detailed reports accompany each stone at all times and they are easily verifiable.  The main four laboratories that certify the stones we supply are described on this page.  They are fully independent and completely impartial.  Follow the links below each icon to explore their websites and find out more about them.

The GIA (Gemological Institute of America)

The GIA are the world’s foremost authority on the certification of diamonds and other gemstones.  The GIA is a non-profit making institute dedicated to research and education in the field of gemmology and the jewellery arts.  Founded in 1931, the GIA’s mission is to protect all buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality.

The institute does so through research, gem identification and diamond grading services and a variety of educational programs. Through its world-renowned library and subject experts, GIA acts as a resource of gem and jewellery information for the trade, the public and worldwide media outlets.

Gübelin Laboratories

Based in Lucerne, Switzerland, Gübelin have forged a reputation as the preeminent body for the certification of Emeralds and other gemstones.

Founded in 1850, they are one of the oldest and most highly respected certification institutions in the world.  Indeed their founder, Dr Eduard Gübelin, is said to be the “father of modern gemmology.”



“CDTEC´S professional team is specialised in very diverse and specific technological processes, which are fundamental in the assessment, tradition and authenticity of Colombian gems.”

Based in Bogotá, Colombia, and with their finger on the pulse of the fine emerald trade, CDTEC have developed a reputation at the forefront of gem certification.



SSEF is a Swiss gemmological institute founded in 1974 and part of the Swiss Foundation for Gemstone Research, specialising in coloured gemstones.

Its forte lies in the detection of gemstone authenticity, origin and gem treatments.  It offers expert independent advice to a wide gemmological clientele including gem dealers, collectors and auction houses.