Rubies are defined by one thing above all else — red. Not every shade of red qualifies. The most valued rubies display a pure, vivid crimson with a slight blue undertone, sometimes described as pigeon blood red — a term used by gemologists to denote the finest color range, not a general label for any red stone. Lighter stones read as pink sapphire, darker ones lose brilliance to excessive depth. The window of truly exceptional ruby color is narrow, which is part of what makes fine specimens so rare.

Rubies belong to the corundum family, the same mineral species as sapphires. With a hardness of 9 on the Mohs scale, they are among the most durable colored gemstones available — well suited for all types of jewelry worn daily and resilient enough to maintain their surface over years of regular use.

Natural rubies of fine quality are among the rarest gemstones in the world. Burma — now Myanmar — has historically produced stones considered the benchmark for color and fluorescence. Mozambique has emerged as a significant source of high-quality rubies in recent decades, producing stones with strong saturation and excellent transparency. Origin influences value, but quality always comes first. As the traditional birthstone for July, rubies remain one of the most personally meaningful choices in colored gemstone jewelry.

Yellow gold is the natural pairing for rubies — it deepens the warmth of the red and creates a combination that has been used in fine jewelry for centuries. White gold and platinum offer a sharper contrast that allows the color to read with greater clarity and a more contemporary feel.

Explore ruby jewelry by type: rings, earrings, pendants, and bracelets. For ruby rings specifically, our ruby rings collection offers pieces selected around the stone's particular character. For jewelry built around a specific certified ruby — with documented origin and treatment status — our bespoke service is the right starting point. You may also be interested in sapphire jewelry, emerald jewelry, tanzanite jewelry, or tourmaline jewelry.