Exceptional fine large Unheated Blue Aquamarine. Beautiful color. Oval Cabochon Cut. 13.40 ct. A large gem to well priced!.
WEIGHT : 13.40 ct.
SIZE : 17.84 * 12.89 * 8.73 mm.
SHAPE : Cab. Oval
COLOR : 21. (vslgB) very slightly greenish Blue
TONE : 4. Medium light
SATURATION : 2. Slightly Brownish / Grayish
CLARITY GRADE : Moderate
CUT GRADE : Good
TREATMENT : None
HARDNESS : 7.5 - 8.0
Inclusions type : Oriented fractures (parallel and perpendicular lines). Dark field illumination 40X
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The origin of the name from the latin words “aqua” (water) and “marina” (sea), in reference to seawater color. Aquamarine evokes the tranquility and security, like a calm sea.
Aquamarine can be light or dark blue, greenish blue to pale green - blue. The commonest color is a pale to medium blue or greenish blue. The most expensive aquamarine have a saturated blue color without inclusions, vitreous lustre and transparency.
CUT & SIZES
Aquamarine cut stones are available in a wide variety of shapes. Apart of convencional cut (emerald, oval, pear, round, trillion, pear, etc) we can find fancy cuts. Emerald cut aquamarine is highly sought in jewelry.
Cabochon cutting is probably the most common form of gem cutting for translucent aquamarine, and faceting cutting for transparent aquamarine.
Aquamarine is available in large sizes, smaller aquamarine gems (under 5.00 ct.) often show lighter color.
CLARITY & INCLUSIONS
The characteristics and arrangement of the inclusions are responsible for the ASTERISM and CHATOYANCY in the aquamarine gemstone.
More information about Aquamarine Gemstone.
MdMaya Gems uses the following clarity scale when grading gemstones.
Setting aside translucent and opaque gemstones, the first classification to take into account is:
EYE CLEAN: Appears clean to the unaided eye. (Type 1, 2 and 3)
Type 1: Minute inclusions difficult to see with the unaided eye.
Type 2: Minor inclusions easy to see with the unaided eye.
Type 3: Noticeable inclusions apparent to the unaided eye.
Type 1: Minor inclusions somewhat easy to see with the unaided eye.
Type 2: Noticeable inclusions apparent to the unaided eye.
Type 3: Obvious inclusions very apparent to the unaided eye.
HEAVILY included: prominent inclusions that have a negative effect on appearance or durability.
SEVERELY INCLUDED: prominent inclusions that have a severe effect on appearance or durability or both. (Type 1, 2 and 3).
All our gemstones have been analyzed by a qualified gemologist. Each precious stone comes with a gemological certificate to guarantee its authenticity, as well as describing its unique characteristics.
Pictures in this website might not reflect the intensity and brightness of the real color of the gemstone. Additionally, the pictures might not properly represent the real size of the gem (provided in millimeters). Do not hesitate in requesting more graphic documentation of the precious stone for any clarifications. This will be provided shortly to accommodate your needs.
The photographs of the inclusions, if any, are a distinctive sign NATURAL origin.
If you are interested in obtaining more information about this gemstone, CONTACT US and we will respond as son as possible.