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Igi certified hpht lab grown diamonds VS VVS Clarity

Igi certified hpht lab grown diamonds VS VVS Clarity

Short Description:

hpht lab grown diamonds, often referred to as lab created , man made, or even synthetic diamonds, are created in a laboratory setting that emulates the natural process of a diamond’s growth – only, taking a lot less time (say, 3 billion years less, give or take) and less cost.

The hpht lab grown diamonds are 100% real diamonds, and are optically, chemically and physically identical to natural, mined diamonds. The demand for hpht lab grown diamonds have soared in recent years, as engineering methods and technology have been perfected to produce diamonds that are, by all accounts, beautiful, economical, real diamonds.


Product Detail

Product Tags

Parameters of hpht lab grown diamonds

Code # Grade Carat Weight Clarity Size
04A A 0.2-0.4ct VVS VS 3.0-4.0mm
06A A 0.4-0.6ct VVS VS 4.0-4.5mm
08A A 0.6-0.8ct VVS-SI1 4.0-5.0mm
08B B 0.6-0.8ct SI1-SI2 4.0-5.0mm
08C C 0.6-0.8ct SI2-I1 4.0-5.0mm
08D D 0.6-0.8ct I1-I3 4.0-5.0mm
10A A 0.8-1.0ct VVS-SI1 4.5-5.5mm
10B B 0.8-1.0ct SI1-SI2 4.5-5.5mm
10C C 0.8-1.0ct SI2-I1 4.5-5.5mm
10D D 0.8-1.0ct I1-I3 4.5-5.5mm
15A A 1.0-1.5ct VVS-SI1 5.0-6.0mm
15B B 1.0-1.5ct SI1-SI2 5.0-6.0mm
15C C 1.0-1.5ct SI2-I1 5.0-6.0mm
15D D 1.0-1.5ct I1-I3 5.0-6.0mm
20A A 1.5-2.0ct VVS-SI1 5.5-6.5mm
20B B 1.5-2.0ct SI1-SI2 5.5-6.5mm
20C C 1.5-2.0ct SI2-I1 5.5-6.5mm
20D D 1.5-2.0ct I1-I3 5.5-6.5mm
25A A 2.0-2.5ct VVS-SI1 6.5-7.5mm
25B B 2.0-2.5ct SI1-SI2 6.5-7.5mm
25C C 2.0-2.5ct SI2-I1 6.5-7.5mm
25D D 2.0-2.5ct I1-I3 6.5-7.5mm
30A A 2.5-3.0ct VVS-SI1 7.0-8.0mm
30B B 2.5-3.0ct SI1-SI2 7.0-8.0mm
30C C 2.5-3.0ct SI2-I1 7.0-8.0mm
30D D 2.5-3.0ct I1-I3 7.0-8.0mm
35A A 3.0-3.5ct VVS-SI1 7.0-8.5mm
35B B 3.0-3.5ct SI1-SI2 7.0-8.5mm
35C C 3.0-3.5ct SI2-I1 7.0-8.5mm
35D D 3.0-3.5ct I1-I3 7.0-8.5mm
40A A 3.5-4.0ct VVS-SI1 8.5-9.0mm
40B B 3.5-4.0ct SI1-SI2 8.5-9.0mm
40C C 3.5-4.0ct SI2-I1 8.5-9.0mm
40D D 3.5-4.0ct I1-I3 8.5-9.0mm
50A A 4.0-5.0ct VVS-SI1 7.5-9.5mm
50B B 4.0-5.0ct SI1-SI2 7.5-9.5mm
60A A 5.0-6.0ct VVS-SI1 8.5-10mm
60B B 5.0-6.0ct SI1-SI2 8.5-10mm
70A A 6.0-7.0ct VVS-SI1 9.0-10.5mm
70B B 6.0-7.0ct SI1-SI2 9.0-10.5mm
80A A 7.0-8.0ct VVS-SI1 9.0-11mm
80B B 7.0-8.0ct SI1-SI2 9.0-11mm
80+A A 8.0ct + VVS-SI1 9mm+
80+B B 8.0ct + SI1-SI2 9mm+

4C Standard of hpht lab grown diamonds

AVAV (2)

Color

hpht treated diamonds color is graded in a standardized viewing environment.Gemologists analyze color in the D to Z color range with the diamond placed upside down, viewed through the side, to facilitate a neutral view.

AVAV (3)

Clarity

Grades clarity of hpht treated diamonds according to internationally accepted standards at 10X magnification, according to the visibility, size, number, location and nature of internal and surface characteristics at that magnification.

AVAV (4)

Cut

Gemologists overall proportions, measurements and facet angles are compared with studies of brightness, fire, scintillation and pattern to determine the Cut Grade of the hpht treated diamonds.

AVAV (1)

Carat weight

The first stage in hpht treated diamonds grading is weighing the diamond. Carat weight is the standard weight unit for gemstones. Diamond grading are to two decimal places to ensure accuracy.


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