Background
Kehan Li, a senior gemmologist, is an independent jewellery adviser and valuer based in London, trusted by distinguished private collectors, royal households, and institutional clients to navigate the highest echelons of the global high jewellery market.
Her practice centres on connecting discerning buyers with extraordinary pieces — sourcing, evaluating, and advising on acquisitions across diamonds, coloured gemstones, jadeite, and significant high jewellery. Over the past five years, Kehan's role has evolved from traditional valuation into a deeply strategic advisory practice, guiding clients through complex acquisitions, collection development, and portfolio decisions at the most elevated level of the market.
Kehan's advisory work is underpinned by decades of gemmological expertise and an extensive network cultivated across auction houses, ateliers, and private dealers worldwide. She operates with complete independence — unaffiliated with any dealer, auction house, or brand — ensuring that every recommendation serves the client's interest alone.
Kehan founded and continues to lead the independent practice previously known as Loupe Jewellery Valuation & Consultancy, now operating under her own name to reflect the scope of the work today: international advisory, valuation, and expert witness services for private collectors and institutions.
Specialist Areas
Kehan's expertise spans diamonds, coloured gemstones, pearls, and high jewellery, with particular depth in jadeite — a field demanding highly specialised knowledge that few advisers in the Western market possess. She works across contemporary high jewellery, historically significant pieces, and culturally important artefacts, bringing a rare fluency across both Eastern and Western collecting traditions. Her experience extends to valuing large colourless and fancy coloured diamonds of any calibre, including stones of over 100 carats, alongside extraordinary jewels and rare gemstones of exceptional quality.
Beyond advisory, Kehan continues to provide comprehensive valuations for insurance, probate, estate, family division, capital gains, and open market purposes, as well as authoritative expert witness testimony for Civil Court proceedings — fully compliant with Part 35 of the Civil Procedure Rules — drawing on the same rigour and independence that defines her advisory practice.
Approach
Discretion is foundational. Kehan's clients entrust her with matters of significant personal and financial importance, and every engagement is conducted in the strictest confidence. Each instruction — whether a single stone or an entire collection — is approached with the same rigour, independence, and attention to detail, ensuring the client receives counsel calibrated precisely to their needs.