Precious Gemstones

Rubies

Current Market Range

$500+

History

Rubies have been cherished for thousands of years and hold significant historical and cultural value. They have been mined and traded in Southeast Asia since ancient times.

Rubies are often associated with power, passion, and protection. Historically, they were worn by royalty and warriors to symbolize strength and to protect against misfortune. In ancient Indian culture, rubies were called "ratnaraj," meaning "king of precious stones." Rubies were also believed to contain a powerful inner fire that could bestow good fortune on their owners.

Rubies are often used in fine jewelry, including rings, necklaces, bracelets, and earrings. Their durability, combined with their striking color, makes them a popular choice for engagement rings and other pieces intended for daily wear.

The allure of rubies continues to captivate gem enthusiasts and collectors around the world.

Country of Origin

Rubies are mined in several locations around the world, with some of the most famous and high-quality stones coming from Myanmar (formerly Burma), particularly the Mogok Valley. Other notable sources include Thailand, Sri Lanka, Madagascar, Mozambique, and Afghanistan. Historical sources also include India and Pakistan.

Color(s)

Rubies are prized for their vibrant red color, which ranges from pinkish-red to deep blood-red. The most valuable rubies have a rich, vivid, and intense red color often described as "pigeon blood red."

Chemical Formula

The chemical formula of ruby is Al₂O₃:Cr, indicating that it is a variety of the mineral corundum (aluminum oxide) with chromium as the trace element that gives it its red color.

Hardness

Luster

Adamantine

Crystal System

Trigonal (Rhombohedral)

Refractive Index

1.77

Specific Gravity

3.99

Help Guide

Crystal System

Gemstones and minerals are classified into seven primary crystal systems based on their atomic structure.

Refractive Index

The refractive index (RI) of a material measure how much light is bent, or refracted, when entering the material from another medium.

Specific Gravity

The specific gravity (SG) of a substance is a measure of its density compared to water.

Chemical Formula

A chemical formula shows the types and quantities of atoms in a molecule.