Captivated by Coral

We’ve been wearing coral jewelry for at least 30,000 years – an impressive testament to its timeless appeal.

Coral comes in an array of colors: white, cream, various shades of red and orange, blue, a light grayish violet called “lavender” in the trade, and a light, vivid pink color sometimes referred to as “angel’s skin”. There is also black and golden coral. Red coral (sometimes called “ox blood” in the trade) has historically been the most expensive. Gem-quality coral has uniform color.


How Technology is Changing Jewelry Design

Something remarkable happened to jewelry design and manufacturing in the past few years – it underwent a technological revolution powered by Computer-Aided Design (CAD) software and Computer-Aided Manufacturing (CAM) hardware, such as 3D printers.


The Seattle Seahawks get their Super Bowl Rings

The reigning world champion Seattle Seahawks sported new Super Bowl rings when they took the field against the Green Bay Packers, kicking off their season with a resounding win.


The Big Deal about Little Inclusions

Clarity characteristics on a gemstone’s surface are called blemishes. Inside the stone, they are referred to as inclusions.. This post will focus on inclusions and how they are important factors to gem and jewelry professionals and consumers.

Inclusions can be very small, but they mean a lot. In general, the fewer inclusions, the greater the desirability.


Sapphire Buying Guide

September’s birthstone, Sapphire, is one of the most beloved gemstones. Considered one of the “Big Three” (along with ruby and emerald),  sapphire stepped into the spotlight with Princess Diana’s famous engagement ring, which Prince William then bestowed to Kate Middleton when he proposed in 2010.


Ammolite – The Fashionable Fossil

If you’re intrigued by the origin of gemstones, then you’re probably going to love ammolite. Ammolite is iridescent fossilized ammonite shells found in Southern Alberta, Canada.

Home | FAQ | Site Map | GIA 4Cs Blog | Contact a Diamond Expert | Comments & Suggestions
4Cs Education | More Diamond Information | GIA Grading & Reports | Diamond Buying Guide | About GIA
Use of this site signifies your agreement to its terms of use. © 2002 - 2014 Gemological Institute of America Inc. GIA is a nonprofit 501(c)(3) organization. All rights reserved.
World Headquarters and The Robert Mouawad Campus 5345 Armada Drive, Carlsbad, California 92008 (760) 603-4000
This page was last updated Wednesday 1st of October 2014 06:47:23 AM