Rhodium is a chemical element that is a rare, silvery-white, hard transition metal and a member of the platinum group.

Stainless Steel is highly favored in the jewelry industry today and is steadily increasing in popularity. It is more rugged than gold or silver as it is nearly indestructible. It is harmless to the body and has the same appearance but is 100 times stronger than platinum jewelry. Stainless steel is often used for maximum corrosion wear.

Pure silver is soft, too soft to create durable jewelry, so it's mixed with other metals to enhance performance. One popular silver mixture (an alloy) is known as sterling silver. Sterling Silver Markings & Descriptions - The US Federal Trade Commission (FTC) stipulates that jewelry sold in the United States cannot bear silver markings or be described as silver, solid silver, sterling silver, sterling, or with the abbreviation Ster. unless it contains at least 92.5 percent pure silver.

The minimum silver content can also be stated as 925 parts per thousand of pure silver, so you might see the figures 925 or 92.5 used to designate silver content.

Tungsten is a hard, brittle, corrosion-resistant, gray to white metallic element extracted from wolframite, scheelite, and other minerals, having the highest melting point and lowest vapor pressure of any metal.

Tungsten Carbide is an alloy of Tungsten and Carbon — when combined, the metal is extremely hard and durable. 

Tungsten Carbide is ten times harder than 18 karat gold, five times harder than tool steel, and four times harder than Titanium.  It is almost impossible to scratch and will keep its shine for a lifetime.  Tungsten Carbide jewelry is known for its heavy weight and deep, modern color.

Titanium is a fast-growing trend in the jewelry sector (especially men’s) and has many benefits.  It is extremely resistant to corrosion and water and it is hypo-allergenic — people who have allergies to gold or silver can wear titanium without any problem.  It is has a very high strength-to-weight ratio, resulting in lightweight, strong jewelry that is comfortable to wear.  Because it is so strong and lightweight, titanium has been used for years in aerospace technology applications.  And, titanium offers the stylish, rich color of platinum at a much more affordable price.