Not a diamond; this is a faceted blue glass or synthetic crystal piece with obvious internal fractures and surface wear.
Not a diamond; this is a faceted blue glass or synthetic crystal piece with obvious internal fractures and surface wear. · Irregular Cushion / Freeform Cabochon with rose-cut facets
Poor (Irregular facet alignment, heavy chipping along the edges) Cut
Carat
Estimated around 3.5 to 5 carats equivalent volume, though as glass it carries no gemological weight.
Color
Fancy Deep Blue
Clarity
Included (Visible fractures, internal stress lines, and bubbles typical of glass)
Shape
Irregular Cushion / Freeform Cabochon with rose-cut facets
Overall Assessment
The object in the image is a piece of blue glass rather than a diamond or precious gemstone. It exhibits characteristic fractures, uneven faceting, and surface wear typical of manufactured decorative glass.
Cut Quality
Poor (Irregular facet alignment, heavy chipping along the edges)
Brilliance
Low to Moderate due to material composition and internal fractures
Fire
Minimal to none (glass lacks the high dispersion of a diamond or moissanite)
Scintillation
Weak, patchy light return due to poor symmetry and surface wear
Proportions
Non-standard (Irregular depth and asymmetric crown facets)
Symmetry
Poor (Asymmetrical outline and uneven facet placement)
Polish
Fair (Moderate surface wear and abrasion marks)
Fluorescence
Indeterminate / None expected for glass
Inclusions
Large internal fracture planes (feather-like stress cracks) and potential gas bubbles typical of manufactured glass
Blemishes
Edge chipping, surface scratches, and abrasions
Origin
Man-made industrial or decorative glass
Treatment Detection
Common colored glass manufacturing techniques; surface coatings may be present
Estimated Value
Minimal (Less than $5 USD as decorative or craft glass material)
Certification Estimate
Not certifiable by standard gemological grading labs (GIA, AGS, IGI) as a gemstone
Investment Potential
None. This item holds no monetary or investment value.
Similar Diamonds
None (No diamond or precious gemstone shares these physical characteristics)
Setting Suggestions
Wire-wrapping or bezel setting if used for costume jewelry, though not recommended for fine jewelry due to softness.
Care & Maintenance
Avoid harsh chemicals, ultrasonic cleaners, and hard impacts, as glass is fragile and prone to chipping.
Interesting Facts
Often sold as decorative 'crystals' or 'sea glass' in tourist shops, frequently mistaken by novices for precious colored gemstones.