PJ Joseph

Welcome! I’m P.J. Joseph—a trained gemologist with over 40 years of experience in the fascinating world of gemstones. My journey blends scientific precision with storytelling, as I’ve spent decades educating others through writing. Whether you're a curious beginner or a seasoned collector, I’m here to share insights that empower ethical, informed choices in jewelry and gemology. I hold a professional diploma (DgemG) in gemology from the Deutsche Gemmologische Gesellschaft e.V., Idar-Oberstein, Germany, and the Gemological Institute of India, Mumbai, India.

Kinmemai Premium rice grains hand-selected and polished by Toyo Rice Corporation.

Kinmemai Premium: The World’s Most Expensive Rice

SummaryKinmemai Premium is a Japanese rice blend certified by Guinness World Records in 2016 as the world’s most expensive. Made by Toyo Rice Corporation, it combines five award-winning rice varieties aged for six months and polished using patented buffing technology. Only 1,000 boxes are produced each year. The goal is to celebrate Japanese rice and […]

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Mindat Mineral Database homepage

Mindat Mineral Database: Explore the World of Minerals

SummaryMindat Mineral Database is the most complete online resource for minerals, rocks, and meteorites. It connects collectors, gemologists, and students through verified data, photographs, and user contributions. You can search, learn, and even add to this expanding global record of mineral knowledge. Introduction The Mindat Mineral Database is the world’s central resource for mineral information.

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The Rockefeller Kashmir Sapphire Ring by Cartier.

The Rockefeller Kashmir Sapphire: Cartier’s Art Deco Masterpiece

Summary The Rockefeller Kashmir is an 18-carat sugarloaf cabochon sapphire ring by Cartier, originally gifted to Abby Aldrich Rockefeller by John D. Rockefeller Jr. This rare gem, known for its flawless clarity and deep blue tone, leads Christie’s Magnificent Jewels sale in December. The article explores its origin, craftsmanship, and why Kashmir sapphires remain the

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Synthetic Emerald Global Market Report 2025 – Market size, growth trends, and key insights

Synthetic Emerald Market Report 2025 | Global Insights

SummaryThe Synthetic Emerald Market Report 2025 shows steady growth driven by sustainable practices, online sales, and accessible luxury demand. The market will expand from $2.79 billion in 2025 to $3.54 billion by 2029 at a 6.1 percent CAGR. Key drivers include ethical sourcing, technology in gemstone synthesis, and consumer shifts toward sustainable jewelry choices. Introduction

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GEMORO WBT21 Watch and Battery Tester

GEMORO WBT21 Watch & Battery Tester Guide

Summary The GEMORO WBT21 Watch Tester helps you test quartz watches and batteries without opening the case. It checks Silver Oxide, Alkaline, and Lithium batteries, detects movement instantly, and signals results with light and sound. Designed for jewelers and watch technicians, it’s compact, precise, and CE-approved with a one-year warranty. Introduction In the early 1990s,

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Museum of Meenakari Heritage Jaipur exterior — founded by Sunita Shekhawat

Museum of Meenakari Heritage Jaipur by Sunita Shekhawat

Summary The Museum of Meenakari Heritage Jaipur, founded by Sunita Shekhawat, is India’s first gallery dedicated to Meenakari — the art of enameling on gold. Moreover, it connects centuries of craftsmanship with modern design through over 180 exhibits, archival images, and handcrafted reproductions. As a result, it has become a cultural landmark that celebrates Jaipur’s

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Design Dynamic African Jewellery designers at GemGenève 2026

African Jewellery Competition 2026 | Design Dynamic by JGAA

Summary The African Jewellery Competition 2026, launched by the Jewellery and Gemstone Association of Africa (JGAA), connects designers across Africa and the diaspora with mentors, ethical experts, and exposure at GemGenève 2026. Moreover, the theme, Africa Birdlife Collection, celebrates identity, creativity, and African-mined gemstones. Introduction: African Jewellery Competition 2026 on the Global Stage The African

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Man of the Hour by Wei Koh Discovery series poster featuring independent watchmakers

Man of the Hour Docuseries by Wei Koh | Discovery Series 2025

SummaryThe Man of the Hour docuseries by Wei Koh explores the craft and passion behind independent watchmaking. Across eight Discovery episodes, this docuseries takes viewers from Los Angeles to Geneva, Paris to Singapore, revealing how artisans keep horology alive with creativity and precision. Introduction The Man of the Hour docuseries by Wei Koh brings a

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