The Same Mineral. A Different Origin.
Lab-grown sapphire is corundum grown in a laboratory. Iron and titanium in the crystal contribute to its blue colour. Its chemical composition, crystal structure and basic physical and optical properties are essentially the same as natural sapphire’s.
From crystal growth to cutting and polishing.
01
Crystal Growth
Sapphire crystals grow in a laboratory using one of several methods.
02
Rough Blank
The crystal is cut into blanks for further shaping.
03
Precision Preform
Each blank is shaped to the planned cut and size.
04
Finished Gemstone
Facets are cut and polished to complete the stone.
How Cutting Influences Sapphire's Appearance
A sapphire's shape, cutting proportions and facet arrangement influence how it reflects light and how its colour appears.
Even stones with similar colour may look different in brightness and contrast. Compare samples of similar size under the same lighting when selecting a cut for your design.
Browse established colour references, standard shapes, sizes and quality grades in the BIG3 Standard Program.