Rodeo Queen Ruby™ is mined from the eastern foothills of the Rocky Mountains, near Cheyenne, Wyoming. The gemstone has a saturated pinkish-red color and is mostly opaque, making it an ideal choice for vintage styles and other custom jewelry designs. Ruby is the birthstone for July. Ruby, a variety of corundum classified as a precious gem, is one of the world's most valuable gemstones. With its hardness and durability, ruby is an excellent choice for all types of jewelry. The color of a ruby is due to a trace of chromium in the gemstone; the amount of this substance determines the depth of color. Through the ages, ruby has been considered to be a gem of nobility, credited with engendering sensuality and vitality. Rio is proud to offer the American Mined™ Collection, a growing selection of gemstones sourced from mines located here in America. These gemstones consistently present the excellent color, clarity and quality we look for in every gem we offer you. Each of these gemstones allows us to provide a clear, documentable path from the mine to your bench; you and your customers can be confident that every one is mined, cut and processed under conditions that meet all standards for worker safety, environmental protection and responsible production. Round-cut gemstones are highly popular and the most commonly available. Rio round gemstones are calibrated for size and hand inspected to ensure maximum attractiveness.

• Gemstone Type: Ruby
• Stone Shape: Round
• Stone Size: 1.75mm
• Stone Type: Natural
• Color: Pinkish-red
• Birthstone: July
• Enhancement: None (N)
• Grade: A/B
• Mohs Hardness: 9
• Clarity: Opaque
• Refractive Index: 1.76–1.77
• Specific Gravity: 3.97
• Brand: American Mined, AGTA
• Mineral Source: WYOMING
• Weight: 0.000 kg