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.

Philip Spencer ACSI, BA Hons

Philip Spencer ACSI, BA Hons

Founder & Managing Director


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 and a desire to build an ethical and sustainable business model from the ground up. 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.

Ling Li GIA GG – Business Development Manager

Fluent in English, Chinese and Korean, Ling specialises in the Asia Pacific market, helping her clients acquire the pieces of jewellery that they desire, all the while providing valuable industry expertise and services. She is a GIA Graduate Gemmologist and she is currently studying to become a qualified jewellery CAD designer.

Before starting in the jewellery industry, she had a successful career working in the banking and finance sector for seven years across Hong Kong, Singapore & Dubai, where she helped facilitate global trade by financing and connecting buyers and suppliers across the world.

Ling is passionate about gemstones and jewellery design which has brought her into a new and exciting career in the jewellery industry. She enjoys travelling around the world and experiencing local cultures.

Shazia Lalani – Marketing Manager

Since graduating from Warwick Business School, Shazia has developed a broad range of B2B and B2C Marketing experience, having worked in professional services and FMCG companies.

She has a Professional Diploma from the Chartered Institute of Marketing and is skilled in end-to-end campaign project management, PR, events, and client relationship management.

Shazia is passionate about fashion and jewellery, and in her spare time enjoys reading, travelling and meeting new people.

Tobias Graham – Sales Manager

Born and raised and in London, Tobias has amassed over 11 years of experience in the Jewellery trade buying and selling. Building and maintaining relationships with customers and suppliers across the world.

With a wealth of knowledge of diamonds, coloured gems, jewellery and watches, he can give detailed advice on any commission, gemstone or timepiece.

Tobias has studied with National Association of Jewellers and Gemmological Institute of America.

Annabel Spencer ICSA – Non-Executive Director

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.

Annabel 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. In her full-time role she works for a leading City corporate services provider, advising clients on corporate governance and compliance.



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.