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inclusions

Mechanical Gemstone Cleaning

Inclusions, some visible to the naked eye and others microscopic, are present in many gems. Some add great beauty and interest to a gemstone. However,…

HPHT Diamond Treatments

…in the center are also a distinctive feature. In addition, look for frosted naturals, frosted feathers, faceted girdles with bearding, melted…

Garnet Buying Guide

inclusions. Beautiful to observe, they also give the stone a unique character. 4.6-ct demantoid with horsetail inclusions. © Ildar…

Appraising Emeralds

…At lower clarity grades, inclusions are visible or even prominent to the unaided eye. Certainly not eye clean, this emerald has prominent dark…

Ruby and Sapphire Origins

…fine tubes; small black crystals and short rods; healed fissures; color zoning. For information on inclusions typically found in corundum,…

An Introduction to Fancy Gem Cuts

…this quality gives cushions a vintage feel, it also makes them unforgiving with flaws. Any inclusions will be clearly visible through these…