Sapphire · Facet Rough · 69 ct · Synthetic · Yellow

This vibrant Flame Fusion synthetic yellow sapphire offers exceptional clarity, brilliant color, and outstanding cutting potential. Manufactured by Mosangna, the crystal features a vivid golden-yellow hue and excellent transparency, making it an ideal choice for precision faceting as well as custom jewelry projects.

Weighing 69.62 carats (13.92 grams), this synthetic corundum provides ample material for creating multiple faceted gemstones or a single impressive centerpiece. With an estimated 99% facetable volume, nearly the entire crystal can be utilized during the cutting process, maximizing both efficiency and material yield. Its clean, block-like shape offers excellent flexibility for a wide range of faceting styles, including emerald cuts, radiant cuts, cushions, rounds, and custom precision designs.

Produced using the Flame Fusion process, the material is eye clean and highly homogeneous, providing consistent optical performance throughout the crystal. Once faceted, the vivid yellow color combines with corundum’s high refractive index to produce bright reflections, crisp facet junctions, and excellent brilliance. Its predictable cutting characteristics make it equally suitable for experienced faceters and those developing their precision faceting skills.

Synthetic corundum is valued not only for its beauty but also for its durability. With a hardness of 9 on the Mohs scale, it offers outstanding resistance to scratching and is perfectly suited for everyday jewelry. The combination of exceptional hardness, brilliant color, and outstanding cutting potential makes this crystal an excellent choice for producing precision-cut yellow sapphires with impressive optical performance.

Specifications

• Stone Type: Synthetic Corundum
• Growth Method: Flame Fusion
• Manufacturer: Mosangna
• Weight: 13.92 g / 69.62 ct
• Dimensions: 26.0 × 19.1 × 9.7 mm
• Clarity: Eye Clean
• Color: Yellow
• Transparency: Transparent Rough
• Type: Crystal
• Facet Potential: Facet Grade
• Facetable Volume: ~99%
• Estimated Yield: ~40%