Natural and Untreated White Topaz 4.26 ct Round Cut.Loose fine quality gemstone on sale.
WEIGHT : 4.26
SIZE : 10.03 * 6.53 mm
SHAPE : Round Cut
COLOR : Colorless
CLARITY GRADE : Slight
CUT GRADE : Good
TREATMENT : Unheated
HARDNESS : 8
Inclusions type : Fluid inclusions and solid inclusions.
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COLOR OF TOPAZ GEMSTONE
The most common color of the topaz is colorless and brown, not blue. The color blue, mostly, is caused by treatment.
On the nature found colorless, brown, blue, yellow, orange, pink, purple and red topaz.
Topaz is allochromatic, its color is caused by impurity elements or color centers (crystallographic defects).
Colorless Topaz, Blue or Green Topaz – Color centers, Yellow or Brown Topaz – Color centers
Pink or Red Topaz colored by Cr, Orange Topaz colored by Cr and color centers
The most expensive color topaz are rich Pink or Red Topaz, followed by rich Orange Topaz. These vivid colors (red, pink, and orange) can cost excess of $1500/ct in contrast with the blue topaz (commonly treated) that is available by not more of $60/ct.
White or Colorless Topaz is an affordable gemstone. It's ideal for jewelry, its hardness (8 Mohs Scale), transparency, brilliance and its low price, make this white gemstone an affordable choice for your jewels.
CUT & SIZES
Due to the prismatic habit of the crystals, topaz is often cut into elongated shapes (rectangular, emerald, oval, pear, teardrop).
Blue topaz is cut into any style and size.
Blue Topaz is available in large sizes, however Red and Pink Topaz are common small sizes.
CLARITY & INCLUSIONS
Topaz will show eye-clean inclusion, except Red and Pink Topaz will show more inclusions.
Typical inclusions: Biphasic and Triphasic inclusions with immiscible liquids, veils, fingerprints or feathers. Solid inclusions (hematite, fluorite, etc). Solid inclusions finished “comet tail”. Needle-like rutile inclusion. Straight lines of growth.
Topaz and Citrine are the birthstones for November. More information about Topaz 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.