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DEF VS SI HPHT Fancy Cut Lab Diamonds 0.4ct 0.2ct Lab Grown Pear Diamond

Categories Fancy Cut Lab 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: Fancy Cut Lab Diamonds
Brand: Yuda Crystal
Grade: High
Assortment: Good
Color: DEF
Clarity: VVS VS SI
Carat Weight: Below 0.5ct
Cut: Ideal, Excellent, VeryGood, Good
Technology: HPHT
Shape: Fancy, Pear
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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DEF VS SI HPHT Fancy Cut Lab Diamonds 0.4ct 0.2ct Lab Grown Pear Diamond

DEF VS SI Mix Lot HPHT Pear Shape Fancy Cut Lab Diamonds For Making Lab Diamond Jewelry


Fancy Cut Lab Diamonds Description


Lab diamonds are real diamonds. Carbon is the main element of natural and laboratory-grown diamonds. The chemical and physical properties of synthetic diamonds are same as natural diamonds in terms of hardness, thermal conductivity, and strength. 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.


After polishing and cutting lab-grown diamonds are same as natural diamonds. they have the same brightness and fire.


Round cut is the most common cut. Fancy shape diamond is different from round cut diamond. After cutting, it has different shapes, such as princess diamond, heart diamond, oval diamond, pear diamond, etc. Fancy diamond cutting began in ancient times, and has become a trend and fashion nowadays.


Water drop cutting, also known as pear cutting, is a hybrid cutting method. Based on the traditional structure of round bright diamond, it combines the advantages of oval cutting and olive point cutting. The cut gem looks like a crystal clear tear, with a round end and a sharp end. Compared with other shapes of diamond, the ratio of length to width of water drop shape diamond depends on personal preference. Many shapes are acceptable, and the appropriate ratio of length to width of water drop shape diamond is 1.50-1.75.


Parameters of Fancy Cut Lab Diamonds


Fancy Cut Lab Diamonds Details
Brand NameYuda Crystal
NameFancy Cut Lab Diamonds
Diamond ColorDEF
Diamond ClarityVVS-SI
Diamond Carat WeightBelow 0.5 carat
Diamond CutExcellent, Very Good,Good
PolishExcellent, Very Good,Good
SymmetryExcellent, Very Good,Good
TechnologyHPHT
Size0.05 - 0.50ct mix
ShapePear Shape
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)

Lab Diamonds Introduction


Natural diamonds are created by nature and are the result of high temperature and pressure formed over billions of years. The Rough 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 Rough Lab Grown Diamonds and natural diamonds?

There is no obvious difference between the Rough 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$$$$$$$$

Fancy Cut Lab Diamonds Details


Quality DEF VS SI HPHT Fancy Cut Lab Diamonds 0.4ct 0.2ct Lab Grown Pear Diamond for sale
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