Unheated Ceylon Star Sapphire 3.48 (OSS348)

3.48 Carat
Foggy Sky Blue
Light 25
Translucent

GRADING REPORT OSS348

• Identification: Natural Unheated & Untreated Star Sapphire
• Carat: 3.48
• Shape: Oval Single Cabochon
• Measures: 7.95x6.83x6.53 (millimeter)
• Color Grade: Fair
• Tone: L25
• Color Zoning: Faint to visible (see comment)
• Clarity: Lightly Included
• Cutting Grade: Excellent
  • Finish: Excellent
  • Star: Good (sharp, off centered, six legged and well travelling)
• Origin: Sri Lanka
• Treatment: None

Certificate No: IGI 208628591

Overall Grade: Good

Comment: Not all perfect, but better than images. Positive: Well-cut with zero weight loss in the back (see side image; this is pretty much the ideal shape for a star: big dome, slender conical and flat back). Positive: Well behaved star but 33% off center. Though on the images not all 6 legs are visible, they are in person. Good size, even for a gent's ring. Negative: Light grey blue body color only, at best a hazy London sky blue or Hong Kong at normal smog levels. Color zoning becomes visible under strong single light (when you want to study the star that is). All-in-all a good star in passable color. Deal for a budget ring if you value the star more than the color. See handshot without star for body-color without zoning.