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.

Close-up of diamond melee stones shimmering in pavé setting on a ring, showing brilliance and sparkle.

Cheap Diamond Melee: Don’t Compromise on Quality

Introduction When buying cheap diamond melee, the lowest price may seem appealing. However, extremely low-cost melee often compromises cut, color, and ethical sourcing. Understanding these risks helps you make smarter purchases for your jewelry or business. For grading standards, see GIA diamond resources. Why Cheap Diamond Melee Can Cost You More No seller gives away […]

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Close-up of colorful mineral specimens displayed on a table with detailed buyer inquiry.

Spotting Overhyped Mineral Specimens: Smart Buying Tips

SummaryThis guide explains spotting overhyped mineral specimens, showing how sellers inflate prices with dramatic stories. Learn to verify origins, assess rarity, and make smarter buying decisions with practical tips and expert advice. Introduction Spotting overhyped mineral specimens is essential for every collector or buyer. When you purchase minerals, you are often paying for the seller’s

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A rainbow-colored collection of tourmaline crystals showcasing shades of pink, green, blue, black, and brown.

Tourmaline Colours: The Full Rainbow Explained

Summary Tourmaline colours cover the full spectrum, from black Schorl and golden Dravite to rainbow Elbaite and rare colourless Achroite. Learn how to identify each type and buy wisely. Introduction Tourmaline colours are often misunderstood. Most people think of only pink or green stones. However, the tourmaline family is much more diverse, offering a full

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Fancy colored diamond showing vivid blue color and radiant cut enhancing color depth.

Colored Diamond Grading: Why Color Matters Most

Summary Many buyers judge fancy colored diamonds by the same 4Cs used for colorless stones. In reality, colored diamond grading prioritizes color intensity and rarity. Learn how to evaluate hue, brilliance, and value properly. Colored Diamond Grading Explained When you buy a diamond, you probably think about the 4Cs — Cut, Clarity, Color, and Carat.However,

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Comparison of gold chains displayed in a family jeweller’s cozy shop and a big brand showroom.

Family Jeweller vs Big Brand: Where to Buy Gold Chain

Introduction Buying your first gold chain is an emotional and financial milestone.You may wonder: family jeweller vs big brand — where should you buy gold chain? Your local jeweller offers personal trust and flexibility, while big brand showrooms promise variety, transparency, and hallmark assurance. Understanding both helps you make the right decision without pressure or

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A jeweler examining a blue gemstone under magnification to verify if it is a genuine sapphire or a glass imitation.

Astrological Gems Fake Detection – Spot Fakes Easily

SummaryAstrological gems fake detection is crucial to avoid costly mistakes. Many gems sold for astrology are glass, synthetic, or assembled. Learn to identify natural stones, ask for certificates, and trust verified sellers. Introduction Astrological gems fake detection is essential if you want to buy stones for astrology. In fact, many so-called “potent” gems are actually

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Professional 220W BLDC gem faceting machine with accessories, featuring a precision dial, polishing lap, and adjustable LED light.

Advanced Gem Faceting Machine with Accessories Kit

Summary The Advanced Gem Faceting Machine is a professional-grade tool for precise gemstone cutting. Designed for both beginners and professionals, it features a direct-drive system for vibration-free performance and a complete accessory kit including grinding discs, polishing lap, dop sticks, angle adapters, and diamond powder. Decimal-angle precision and zero-reading indicators ensure consistent, accurate cuts for

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A gemologist comparing diamonds to GIA master stones under controlled lighting for precise color grading.

What Are GIA Master Stones? Understanding Diamond Color Grading

Summary GIA master stones are the diamond industry’s color grading standard. These carefully selected diamonds represent each grade from D to Z, ensuring accurate, consistent, and fraud-resistant color evaluation worldwide. Introduction When you buy a diamond, its color grade defines both beauty and value. But how do graders ensure consistency? The answer lies in GIA

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