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Starsgem 3.6mm to 3.9mm DEF color VS clarity diamond excellent cut carat weight hpht lab diamonds

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Quick Details

Cut: Ideal cut
Shape: Round
Place of Origin: Guangxi China
Gemstone Color: White DEF
Gemstone Weight: 0.20ct-0.27ct
Gemstone Type: Synthetic (lab created)
Size: 3.60mm-3.90mm
Color: White( DEF)
Gemstone Material: Lab Diamond
Material: Lab Grown Diamond
Treatments Applied: Heat
Gemstone Size: 3.6mm - 3.9mm
Hardness: 10 Moh's Scale
Gemstone Shape: Round diamond cut
Model Number: cvd diamond
Hardness Value: 90 GPA
Clarity: VVS
MOQ: 1 Piece
Brand Name: starsgem
Application: Jewelry Making
Optical Special Effects: no
Certificate Type: Third Party Appraisal
Packaging Detail: 1. Outside packed with standard export carton 2. Inside packed with small jewelry box
Selling Units: Single item
Single package size: 12X10X8 cm
Single gross weight: 0.001 KG
Guangxi Wuzhou Starsgem Co., Ltd.
Manufacturer, Trading Company
Response Time
On-time delivery rate
US$ 430,000+
R&D staffs
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Product Description
starsgem wholesale bulk lab created cvd hpht with IGI certificate 3.60mm - 3.90mm 0.20ct - 0.28ct carat real diamond loose
Lab Grown Diamond
Diamond Cut
Carat weight
Fire dispersion
0.044 (same as real Diamond)
Brilliance Refraction Index
2.42 (same as real Diamond)
Relative Density
3.52  (same as real Diamond)
Deliver date 
1-2 days for in stock , 3-5 days for custom
Payment term 
Paypal , Western union, TT, Aliexpress 
Shipping way 
DHL, ARAMEX,China Post, UPS and etc.
Detailed Images

Six advantages of Lab-Diamond

1. Superior Quality & Purity

2. Known Origin of Every Diamond

3. Environmental Superiority

4. Larger, Better Diamonds for Your Budget

5.Positive Externalities

6.  Affordable Fancy Colored Diamonds

About Lab-diamond

 Lab created diamond is generally produced by chemical vapor deposition (CVD) or high pressure high temperature (HPHT) methods that be similar to natural diamond in quality. Synthetic diamond is often used to process priceless jewelry, because it can be cut into a variety of shapes and polished to achieve many different finishes.


The cut of the Lab-diamond is a measure of the quality of the shape, geometry, and finish of diamond gemstone. Only round brilliant diamonds receive formal cut grades on a scale from ldeal (the best) to Poor. Starsgem in uncompromising on cut quality to ensure all of our diamonds have optimal brightness, fire scinillation, andmaximum light performance.


 Clarity is a measurement of how many blemishes or inclusions are present in the Lab-diamond, which can be eitherdefects in the diamond crystal or microscopic foreign particles within the diamond. The lower the darity of adiamond, the m ore imperfections in the diamond. Clarity is graded on a range from Internally Rawless to Induded


 A perfect diamond, with no impurities and no defects, is completely colorless. Impurities such as nitrogen causeundesirable yellow or brown tones in the diamond Color is graded on a range of letters from D to Z


The carat weight of a Lab-diamond is a measurement of its weight One carat is exactly one- fifth of a gram (0.20 g).When a diamond is properly cut the carat weight defines the size of the diamond, and larger diamonds tend to be more expensive.

Our Company

1.Q:How can I get some sample?

A: Before regular order, you can try a sample order first.

2.Are these diamonds man-made?

Our lab-grown diamonds are cultivated and natural ingredients are placed in an environment created to duplicate nature. As soon as combination of chemical and environmental factors is created, diamond starts growing in the lab. These man-made diamonds have the same physical and chemical properties that are identical to natural.

3.Will I be able to find any difference between created diamonds and earth mined diamonds?
You will only be able to tell the difference if you are a certified gemmologist. Such differences can only be identified using dominant microscope.

4.Why should I buy a lab-grown diamond?
It will never lose its luxury because it carries all the peculiarities of a real diamond with reasonably priced.

5.Will Lab Grown Diamond ever change?
The Lab Grown Diamonds will not be changed over the time because the hardness of our diamond is exactly the same as earth minded diamonds.

6.Are these diamonds enduring like mined diamonds?
Yes, Unique Lab Grown diamonds are more durable compared to mined ones as it comes with fewer inclusions. The hardness of our diamonds are exactly the same as earth minded diamonds & most of our diamonds are type IIa.