Alexandrite: Square Asscher Cut - 6 ct, 10x10mm Lab Stone for fine jewellery

This is a 6-carat alexandrite-style sapphire, precision cut in a classic Asscher geometry. The Asscher cut is a step-cut design that prioritizes symmetry, depth, and internal structure over raw sparkle. Large open facets and a broad table make cutting quality and material clarity immediately visible, which is why this cut is traditionally reserved for high-confidence stones.

The sapphire-based material shows off the classic alexandrite effect, a teal-to-violet color shift that responds cleanly to lighting changes. Cooler light favors blue-green tones, while warmer light reveals saturated violet and purple. The step-cut Asscher geometry keeps the effect structured and intentional rather than chaotic.

This listing is for the loose gemstone shown. If you are planning a custom piece and want to select the stone before design work begins, this stone is also available as the starting point for a commissioned ring or pendant.

Stone Details
• Material: Lab-grown sapphire (alexandrite-style color shift)
• Cut: Asscher cut (step cut)
• Weight: 6.0 carats
• Dimensions: 10 × 10 mm
• Condition: Loose, unset stone

For the modern jeweler.
Ships from the Pacific Northwest, USA.

Every order supports Aetherium Innovations and our mission to develop tools and technologies that lower the barriers in the skilled art trades.