Author: Ralph, Senior Gemologist

Introduction The way a gemstone is cut is one of the most important factors determining its beauty, value, and suitability for a particular jewelry design. A skilled cut can maximize a stone’s brilliance, minimize the appearance of inclusions, optimize carat weight retention, and create the visual proportions that make a finished piece of jewelry...

Introduction When most people hear the word “sapphire,” they immediately picture a deep, velvety blue gemstone. But sapphires are far more versatile than their most famous variety suggests. Sapphires belong to the corundum mineral family and occur in virtually every color of the spectrum — from delicate pinks and vivid yellows to rare padparadschas...

Introduction Melee diamonds are the unsung workhorses of the jewelry industry. These small diamonds — typically ranging from 0.001 to 0.20 carats — may not grab headlines like large solitaires, but they are essential components in the vast majority of fine jewelry pieces produced worldwide. From pave settings and halo rings to channel-set bands...

Introduction When people think of major gemstone trading centers, cities like Antwerp, Mumbai, Bangkok, and Hong Kong often come to mind. But the Middle East — and Beirut in particular — has a long and significant history as a crossroads for the global gemstone and jewelry trade that is often overlooked. For centuries, Beirut...

Introduction A diamond certificate — also called a grading report — is the most important document in any diamond transaction. Issued by independent gemological laboratories such as GIA (Gemological Institute of America) and HRD (Hoge Raad voor Diamant, based in Antwerp), these reports provide an objective, standardized assessment of a diamond’s quality characteristics. For...

Introduction Emeralds are among the most coveted colored gemstones in the world, prized for their rich green hue and historical significance. However, they are also one of the most commonly treated gemstones on the market. Unlike rubies or sapphires, which can occur with excellent clarity, emeralds almost always contain natural inclusions — often referred...

Introduction The diamond market in 2026 is defined by a fundamental shift: lab-grown diamonds have moved from a niche curiosity to a mainstream product category that every jeweler must understand. Whether you are a manufacturer setting stones or a retailer advising clients, the question is no longer whether lab-grown diamonds belong in your inventory...

The diamond industry is facing a new wave of sophisticated scams targeting unsuspecting jewelers and buyers alike. Fraudsters are passing off lab-grown diamonds or HPHT color-treated diamonds as natural ones, using GIA certificates and matching laser inscriptions to make the deception convincing. This scam typically involves diamonds larger than 2 carats, as the potential...

Turquoise, a captivating gemstone, has been a symbol of wealth and prosperity for centuries. Its unique blue-green hue, often mottled with veins of matrix, has made it a sought-after material in jewelry and decorative items. The Origin and Significance of Turquoise Turquoise is formed by the action of water on copper and aluminum minerals....