The deep red to this ruby has no pink or purple undertones and is velvety and rich.
Hydrothermal gem crystals are real corrundum crystals grown under conditions resembling those found in nature. A natural gem crystal forms under intense heat and pressure deep within the earth, but in a lab this process is condensed into approximately 10 months.
The Hydrothermal growth process imitates the natural formation of gemstones. The raw gemstone materials are dissolved in a water solution by being subjected to intense heat and pressure, mimicking the conditions found deep in the earth. The gem crystals grow at a very slow rate which can take up to 10 months to complete. Due to this slow and complicated process, Hydrothermal gems command a higher price than their more affordable Flame-Fusion produced cousins.
This material can be cut in any shape or size within the limit of 4mm to 8mm.