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.

Vintage Art Deco and Retro Jewellery Collection by Beth Bernstein

Modern Guide to Vintage Jewellery – Beth Bernstein

SummaryExplore Beth Bernstein’s Modern Guide to Vintage Jewellery to learn how to identify gemstones, styles, and collectible pieces from the 1930s to the 1980s. Perfect for collectors and enthusiasts. Beth Bernstein is a jewellery historian, author, journalist, and former designer. Her book Modern Guide to Vintage Jewellery explores collectible jewellery from the 1930s to the […]

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Black Opal Direct Lightning Ridge opal

Black Opal Direct: Your Guide to Lightning Ridge Opals

SummaryBlack Opal Direct offers authentic Lightning Ridge opals. The Australian company provides rough and polished stones, custom jewelry design, and educational resources, including blockchain-based Provenance Proofs for high-value gems. Black Opal Direct is an Australian company specializing in Lightning Ridge opals. Founded in 1961 by Jurgen Thomas, it is now managed by his son Justin

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Brazilian colored gemstones for jewelry designers

Brazilian Colored Gemstones: 2025 Jewelry Designer Guide

Summary Discover the top Brazilian colored gemstones in this 2025 guide for jewelry designers. Learn about emeralds, Paraíba tourmalines, aquamarines, and quartz gems. Explore their origins, price ranges, uses in jewelry, and market insights. This guide blends practical tips for designers with proven results and authoritative references, helping you create unique and valuable gemstone jewelry.

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Deloitte Swiss Watch Industry Study 2025 showing Swiss luxury watches and data charts.

Deloitte Swiss Watch Industry Study 2025: Insights & Outlook

Summary The Deloitte Swiss Watch Industry Study 2025 examines the pulse of Swiss watchmaking through data from 111 senior executives and 6,500 global consumers.It tracks shifts such as the pre-owned market boom, the neo-vintage trend, and India’s fast-growing watch demand.If you follow global watch trade or luxury retail, this study offers a clear picture of

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Oscar Heyman 2025 Holiday Catalog featuring handcrafted gemstone masterpieces.

Oscar Heyman 2025 Holiday Catalog: Gemstone Masterpieces

Summary The Oscar Heyman 2025 Holiday Catalog highlights the brand’s mastery in colored gemstone jewelry. Additionally, it features over 100 unique pieces handcrafted in its Madison Avenue workshop. Printed copies were sent to partner retailers across the U.S., and now the digital edition is available on the Oscar Heyman website. A New Chapter in American

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CIBJO Congress 2025 Pearl Report on sustainable pearl farming

CIBJO 2025 Pearl Report: Pearls and Sustainability

Summary The CIBJO Congress 2025 Pearl Report explains how scientific research supports transparency and sustainability in pearl farming.It highlights contributions from the CIBJO Pearl Commission, GIA, and DANAT, and previews the updated Pearl Guide, a 267-page educational reference for pearl-producing species. The CIBJO Congress 2025 Pearl Report demonstrates how science is reshaping the global pearl

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Royal Mint gold recovery extracting 99% gold from e-waste in South Wales.

Royal Mint Gold Recovery: Turning E-Waste into 999.9 Gold

Summary Royal Mint gold recovery technology developed with Excir allows the UK to extract 99% pure gold from electronic waste at room temperature. This clean process supports sustainability, creates jobs, and strengthens the circular economy. From Circuit Boards to Bullion The Royal Mint gold recovery project is reshaping how gold is sourced.It’s no longer only

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De Beers Desert Diamonds Launch: A New Era for Natural Gems

Summary De Beers Group has launched Desert Diamonds, a new jewelry beacon celebrating the warm, natural colors of real diamonds. Inspired by desert origins, it reconnects buyers with authenticity. Supported by De Beers’ largest marketing campaign in a decade, this initiative renews the global conversation around natural diamonds. Introduction In my 40 years in the

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