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Unheated Ceylon Sapphire 1.66 (OBSA166)

marine blue precision cut extra brilliant sapphire from Ceylon, unheated and natural, no window, no
more images
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1.66 Carat
Rich Marine Blue
Medium Dark 60
Lightly Included



- Identification: Natural Unheated & Untreated Sapphire
- Carat: 1.66
- Shape: Oval
- Measures: 7.05x5.91x4.97 (millimeter)
- Color Grade: Very Good
- Tone: Medium Dark 60
- Color Zoning: None
- Clarity: Lightly Included (see comment)
- Cutting Grade: Excellent (precision cut)
  > Brilliancy: 80%
  > Depth: 84%
- Origin: Sri Lanka
Treatment: None

Certificate No: CGL 201808108547 (see 'more images')

Overall Grade: Very Good+

Comment: Rich ocean-blue, unheated sapphire, NOT 'navy' mind you - 'navy' is blackish blue. This 1.66 gem holds the color-magic of our deep blue oceans in a space of 7x6mm. Add a lively sparkle from a precision cut and we have a fine blue sapphire, not in the famous royal or cornflower blue but a colder, slightly brighter shade. Our images catch all combinations of tone and hue (=color) as perceivable in person, including the handshots. A closer look at the images reveal a stick-like inclusion on the outer most edge of the pavilion (the under-section of a gem). While visible from one side or back, it is hidden under the girdle in the front-view and therefore classifies as 'lightly included' (meaning inclusions must be visible from the front, and under the lens, even if visible from the side). If such an inclusion would sit in the middle of the table, instead of being hidden under the girdle's edge, the gem would classify as 'moderately included'. Also lens-only, are the widely distributed colorless bubbles throughout the whole gem. The classic shape in a modern precision-cut will make a perfect solitary center-stone for those who want to jump from the old-fashioned (financially unsound) white diamond e-ring to the progressive choices of modern times. Our 3xNo quality grade is fulfilled: No treatment, no window, no visible inclusions (from the front).

P.S. For the new-comer to colored gemstones on photo, a remark about the handshot just below: The gem's color is equally distributed, yet on photo, you'll note white areas (full brilliancy), darker spaces (near black-out) and simple blue areas. These interchange and move when the gem is in motion, they are NOT black or white inclusions but normal photo-effects. After fifteen years with gems on the web, one easily forgets the normal questions of first-timers as to why a gem with obvious black and white dirt inside could possibly be called 'free of inclusions' by honest people.  

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