20+ Brown Colored Gemstones. Learn about their unique properties, formation, and uses in this detailed guide. Examples of popular brown gemstones used in engagement rings include chocolate diamonds for their rich brown color, smoky quartz for a warm and earthy tone, citrine.

Brown gemstones are suitable for both. All of them are great. Brown gemstones have a mellow earthy appearance and come in a variety of lovely tones, ranging from dark to light and opaque to translucent.