Biography of
Harry Nikolaos Justin

A Career Built on Precision

Harry Nikolaos Justin has devoted more than four decades to the gemstone industry. Born in Crete, Greece, and resident in the United States for the past 41 years, he combines an engineering education, early exposure to mining, and extensive experience in gemstone identification, evaluation, sourcing, and certification. Known for his integrity, discretion, and technical knowledge, he has built lasting relationships with jewellery businesses and commercial clients. Beyond his professional achievements, his life reflects resilience personal loss, and a deep commitment to helping orphaned children.

Professional Career & International Experience

With more than 40 years in gemology, Harry has developed extensive experience in gemstone evaluation, sourcing, commercial supply, and consultation. He supplies gemstones to businesses across different industries and assists jewellers by examining stones, assessing their quality, and preparing evaluations and documentation where supported by the evidence.

His professional experience spans Sri Lanka, Australia, Canada, Myanmar, Mexico, and the United States. Working across these regions broadened his understanding of different gemstone deposits, mining practices, and international supply networks.

Harry specialises in examining colour, clarity, cut, weight, inclusions, and other identifying characteristics. He also evaluates rough stones, reviews supplier documentation, recognises possible treatments or imitations, and identifies cases requiring advanced laboratory testing.

His approach is defined by caution and transparency. He understands that a gemstone's commercial value must never influence the accuracy of its assessment. When further testing is necessary, he advises clients accordingly rather than making unsupported claims. Over time, he developed lasting relationships with jewellers, suppliers, and commercial buyers who value his discretion, reliability, and ability to explain technical findings clearly.

Achievements & Professional Reputation

Harry's professional achievements include establishing a specialist gemstone assessment and sourcing practice, developing systematic documentation procedures, and advising businesses on gemstone quality and purchasing decisions.

In one notable assignment, he identified inconsistencies in a consignment of coloured stones, recommending independent testing before the client proceeded with the purchase. In another, he helped a jewelry business improve its gemstone recording and supplier review procedures.

These experiences strengthened his reputation for careful analysis, practical judgment, and ethical conduct. He also mentors aspiring gemologists, encouraging them to prioritise accuracy, continuous learning, and responsible sourcing.

Character & Legacy

Harry is thoughtful, generous, disciplined, and quietly confident. Although financially successful, he believes that wealth carries a responsibility to help others. He values loyalty, discretion, and honesty, and would rather lose a profitable opportunity than compromise his professional principles.

Now, in his later time of his career, he continues to advise clients, examine gemstones, and mentor younger specialists while maintaining his charitable commitments. His life has been shaped by the mining traditions of his childhood, the opportunities he pursued in America, the guidance of his uncle, and the people he has loved and lost.

For Harry Nikolaos Justin, true wealth lies not simply in the precious stones one discovers, but in the trust one earns, the lives one improves, and the kindness one leaves behind.