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0.40ct 0.50ct 1.0ct VVS VS SI HPHT Loose Diamond

Categories Loose Lab Grown Diamonds
Brand Name: YUDA CRYSTAL
Model Number: YD-A+
Certification: None
Place of Origin: Zhengzhou, China
MOQ: Negotiate
Price: Negotiate
Payment Terms: 100% Payment In Advance
Supply Ability: 50000carats per month
Delivery Time: 1-7 Working Days Depends On Quantity
Packaging Details: Carton box
Product Name: HPHT CVD Diamonds Loose Diamonds
Brand: Yuda Crystal
Grade: High
Assortment: Good
Color: DEF
Clarity: VVS VS
Carat Weight: 0.4ct, 0.5ct 1.0ct
Cut: Ideal, Excellent, VeryGood, Good
Technology: HPHT
Shape: Round Brilliant Cut
Usage: For Making Lab Diamonds Jewelry ( Rings, Earring, Necklace etc )
Component: Carbon
Hardness: Moh's 10 Scale
Available Type: HPHT
Place Of Origin: Zhengzhou, China
Payment Mode: T/T, Bank Transfer, PayPal, Western Union
Courier: DHL, FedEx, UPS, TNT, EMS etc
Packaging: As Export Standard
Customization: Welcome
Polish: Excellent, VeryGood, Good
Symmetry: Excellent, VeryGood, Good
Sample Order: Welcome
Treatments Applied: None
Enhancement: None
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0.40ct 0.50ct 1.0ct VVS VS SI HPHT Loose Diamond

0.40ct 0.50ct 1.0ct D-E-F Color VVS VS SI Clarity HPHT Diamonds Loose Diamonds


HPHT Diamonds Description


Lab Grown Diamonds, also known as man made diamonds, cultured diamonds and lab created diamonds, are grown in a highly controlled laboratory environment using advanced technology.
Although laboratory-grown diamonds are formed in different environments and conditions from natural diamonds, both natural diamonds and lab diamonds are crystals composed of pure carbon, and the physical properties, chemical properties, crystal structure and optical properties of the two are the same. Both lab grown diamonds and mined diamonds are real diamonds.

Can we distinguish between laboratory grown diamonds and natural diamonds?
Yes it is. However, only diamond professionals can identify the difference between laboratory grown diamonds and natural diamonds by using professional diamond identification equipment.

HTHP and CVD are the two main methods for making laboratory-grown diamonds.
High temperature and high pressure method (HTHP) uses graphite as raw material. HPHT diamonds are manufactured at a pressure of 5-6 GPA (approximately the pressure produced by a commercial jet landing on a human fingertip) and a temperature of 1300-1600°C.
CVD diamonds come from various gases, such as methane. They are stored in a vacuum chamber, which decomposes the molecules of the gas, and then these molecules gather on the pre-existing diamond seeds.


Parameters of HPHT CVD Diamonds


Lab Grown Diamonds Details
Brand NameYuda Crystal
NameLab Grown Melee Diamonds
Diamond ColorDEF
Diamond ClarityVVS-SI
Diamond Carat Weight0.4-1.0 carat
Diamond CutExcellent, Very Good,Good
PolishExcellent, Very Good,Good
SymmetryExcellent, Very Good,Good
TechnologyHPHT
Size4mm - 7mm
ShapeRound
Diamond EnhancementNone
Available TypeHPHT
Diamond CertificateNone
ApplicationJewelry Decorations Rings Earring Necklace
Place Of OriginZhengzhou, China
Delivery Time1 - 7 Working Days Base on Order Quantity
Payment Terms100% Payment In Advance
Payment MethodsT/T, PayPal, Western Union, Bank Transfer
Shipping wayDHL, FedEx, SF Express, UPS, EMS, TNT etc
M.O.QNegotiable
Diamond TypeSynthetic(lab created)
LocationZhengzhou, China
Treatments AppliedNone
Fire Dispersion0.044(Same as Natural Diamond)
Brilliance Refraction Index2.42(Same as Natural Diamond)
Relative Density3.52(Same as Natural Diamond)
Chemical CompositionCarbon(Same as Natural Diamond)
Moh's Hardness10(Same as Natural Diamond)

HPHT CVD Diamonds Introduction


Natural diamonds are created by nature and are the result of high temperature and pressure formed over billions of years. The Lab Grown Diamonds are produced in the laboratory, usually in a few weeks. The chemical difference between the two is same.

So how do you distinguish between Lab Grown Diamonds and natural diamonds?

There is no obvious difference between the Lab Grown Diamonds and natural diamonds. Even professional gemologists need special equipment to identify them. By zooming in, professionals will be able to discern subtle contrasts in diamond inclusions grown and mined in the laboratory.


The Difference Between Lab Diamond And Natural Diamond
PropertiesEarth MinedLab Created
Guaranteed Conflict-FreeNoYes
Hardness (MOHS)1010
SP3 Carbon Diamond Bonds (%)100%100%
Internal Crystal StructureFace-Centered CubicFace-Centered Cubic
Hardness Comparable2.422.42
Relative Diversity3.523.52
Color Diffusion0.0440.044
ColorVarious GradesK to D grades
Price$$$$$$$$

HPHT CVD Diamonds Details


Quality 0.40ct 0.50ct 1.0ct VVS VS SI HPHT Loose Diamond for sale
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