BUYER OF PRECIOUS STONES Long known for its extraordinary diamonds, Harry Winston has recently expanded its quest for excellence to the art of watchmaking. Harry Winston has forged a strong identity and occupies a prime position in the world of high jewelry and luxury watches. Its timepieces appeal to enthusiasts who celebrate its boldness, tenacity, and high standards, essential qualities in creating pieces that combine aesthetic exceptionalism with excellence. Harry Winston has joined the portfolio of prestigious brands in the Group, thereby strengthening its market presence. To reinforce the team in our Supply Chain department, we are looking for a: BUYER OF PRECIOUS STONES YOUR RESPONSIBILITIES Launch and monitor calls for tenders with suppliers Negotiate prices and conditions for orders according to established terms (price, quantity, delivery) Ensure the follow-up of deliveries Monitor market price trends and update costs in the ERP Evaluate the performance of key suppliers (cost, delivery time, quality) Manage supplier portfolios and the associated database Periodically review supply parameters in the ERP (lead times, lot sizes, grouping) Collaborate closely with quality, gemology, and product development teams to meet aesthetic and technical needs YOUR PROFILE Technical or commercial expertise confirmed in precious stones, ideally in the watchmaking or jewelry sector In-depth knowledge of gemstones, and keen market insight Strong rigor, discretion, and passion for exceptional products Autonomy, precision, teamwork spirit, and proficiency in tools (Excel, Word) and ERPs (Pro Concept / SAP) Fluency in French and English (oral and written) Work rate: 100% Start date: as soon as possible Work location: (GE) Website: jidc2a2be2aen jit0206aen jpiy26aen