0.87 Ct. Star Ruby from Mozambique

Brought to light from the rich alluvial deposits of Mozambique, this star ruby began its journey as a molten mineral, cooling slowly over geologic time to capture traces of titanium and rutile that would one day form a luminous asterism. Miners working by hand and with careful machines lifted rough nodules from riverbeds where centuries of erosion had concentrated them, and each piece was examined for potential. Our teams at The Natural Ruby Company have long respected the land and the people who recover these treasures, tracing provenance from pit to studio, and this 0.87 carat oval red star ruby carries that connection to place, to patient earth processes, and to the craftspeople who first recognized its promise.

The transformation from rough to radiant cabochon is where the stone truly tells its story. Cut into a smooth cabochon, measuring 5.66 by 4.59 by 3.12 mm, this semi translucent gem was shaped to reveal a vivid red and a sharp star that appears and glides across its dome as light moves. Its clarity is very slightly included when viewed at eye level, a reassuring signature of natural formation that also contributes to the depth and character of the gem. With an excellent polish and no enhancement, the surface presents a clean, silky sheen that allows the six ray star to float above the color, a classic asterism caused by aligned needle like inclusions. The interplay of hue, light, and texture is what makes this ruby distinct, a natural object refined by skillful cutting to balance weight retention with optimal optical effect.

For collectors, designers, or anyone seeking a meaningful jewel, this untreated Mozambican star ruby is ready to be set into a bespoke ring, a pendant, or a classic study piece in a gem collection. Its modest dimensions make it versatile for intimate settings that celebrate subtlety and provenance rather than size alone, and its untreated status preserves both rarity and value. At The Natural Ruby Company we offer this gem with full disclosure of origin and treatment, and with the same hands on care used from the mine to the final polish. Owning this ruby is to carry a small, luminous piece of Mozambique, and to wear a story that began deep beneath the surface and ended in a star.