Gold Sheen Sapphire is a variety of corundum (Al₂O₃) that displays a distinctive golden reflective effect caused by microscopic inclusions, typically hematite, ilmenite, or other mineral platelets within the gemstone.
Unlike star sapphires, which display a distinct star-shaped phenomenon, Gold Sheen Sapphire exhibits a broad golden glow or sheen that appears to move across the stone as it is rotated under light.
Blue Sapphire is the blue variety of the mineral corundum (Al₂O₃). Corundum is the second-hardest natural gemstone after diamond, making sapphire one of the most durable gemstones available for jewelry.
The blue color results from trace amounts of iron and titanium interacting within the crystal lattice. Variations in these trace elements create the wide spectrum of blue sapphire shades, ranging from light cornflower blue to deep royal blue.
Black Tourmaline is the iron-rich variety of the mineral group known as tourmaline. Its black coloration results from high concentrations of iron within its crystal structure.
Color Change Spinel is a rare variety of spinel (MgAl₂O₄) that exhibits color change due to traces of cobalt and chromium. The cobalt creates the blue color in daylight, while chromium produces the purple/violet color under incandescent light.
