diamond buying guide

A high-resolution photograph of a vivid triangular-cut Ocean Green Diamonds specimen.

Ocean Green Diamonds Guide: Rarity, Value, and Care

Introduction Ocean Green Diamonds rank among the rarest and most mysterious gemstones on Earth. In fact, even the most experienced gemologists frequently describe them as the “unicorns” of the colored diamond world. If you have ever seen one in person—or even in a professional photograph—you already understand why they command such fascination. Their electric blue-green glow […]

Ocean Green Diamonds Guide: Rarity, Value, and Care Read More »

Lab-grown diamond under microscope showing clarity and structure.

Lab Grown Diamond Warning: A Gem Expert’s Buying Logic

Introduction Lab grown diamond warning for every buyer. You see attractive prices. You see bright stones. But you don’t see the long-term impact on your money. As a gem expert, I want you to understand the buying logic behind lab-grown diamonds. This short guide explains the risks, the price drop, and the points you must

Lab Grown Diamond Warning: A Gem Expert’s Buying Logic Read More »

Diamond feelings in 10 years: Person holding a diamond and visualizing its long-term value.

Diamond Feelings in 10 Years: How to Choose the Right One

Summary Ask “How will this diamond make you feel in 10 years?” to ensure long-term satisfaction. Learn practical tips, emotional insights, and expert guidance from 40 years in the jewelry industry. Table of Contents Why Ask About Diamond Feelings in 10 Years When buying a diamond, ask yourself: “How will this diamond make me feel

Diamond Feelings in 10 Years: How to Choose the Right One Read More »

The Inappropriate Guide to Buying an Engagement Ring by Andy Koehn of Koehn & Koehn Jewelers

Inappropriate Guide Engagement Ring | Andy Koehn’s Advice

Introduction If you’re nervous about shopping for a ring, The Inappropriate Guide to Buying an Engagement Ring by Andy Koehn of Koehn & Koehn Jewelers is exactly what you need. This book is raw, practical, and full of real-world advice that helps you cut through the noise of jewelry store sales tactics. Unlike the polished

Inappropriate Guide Engagement Ring | Andy Koehn’s Advice Read More »

A gemstone viewed under different light sources showing vivid color change and light reflection variations.

Gemstone Lighting Guide: See True Colors Before You Buy

Summary The gemstone lighting guide explains why testing gemstones under multiple lights is crucial. Learn to spot color change, windowing, and flaws before purchase. Introduction When buying gemstones, you need a gemstone lighting guide to see the true colors before you buy. Store lights can make gems sparkle indoors, but outdoors they may appear dull

Gemstone Lighting Guide: See True Colors Before You Buy Read More »

Diamonds displayed in various cuts and colors at jewelers' showcases in New York’s Diamond District.

Diamond Mistakes NYC: How to Avoid Overpaying

Introduction Buying diamonds in NYC can be exciting, but many shoppers make diamond mistakes NYC that cost thousands. Understanding the **4 Cs—cut, clarity, color, and carat—**helps you avoid overpaying and choose the perfect stone. With this knowledge, you can shop confidently in New York’s Diamond District. Cut: Avoid Sparkle Mistakes The cut determines how a

Diamond Mistakes NYC: How to Avoid Overpaying Read More »

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,

Colored Diamond Grading: Why Color Matters Most Read More »