1mm 1.5mm DEF VS SI Lab Grown Melee Diamonds Round Brilliant Cut For Jewelry
Contact Person : Li
Phone Number : +86 371 53395413
WhatsApp : +8615225124915
|Minimum Order Quantity :||Negotiate||Price :||Negotiate|
|Packaging Details :||Carton box||Delivery Time :||1-7 working days|
|Payment Terms :||T/T, Western Union, PayPal, Bank Transfer||Supply Ability :||50000carats per month|
|Place of Origin:||Zhengzhou, China||Brand Name:||YUDA CRYSTAL|
|Product Name:||Lab Grown Melee Diamonds||Brand:||Yuda Crystal|
|Carat Weight:||0.005-0.008ct||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, CVD|
|Place Of Origin:||Zhengzhou, China||Payment Terms:||100% Payment In Advance|
|Payment Mode:||T/T, Bank Transfer, PayPal, Western Union||Delivery Time:||1-7 Working Days Depends On Quantity|
|Courier:||DHL, FedEx, UPS, TNT, EMS Etc||Packaging:||As Export Standard|
|Customization:||Welcome||Polish:||Excellent, VeryGood, Good|
|Symmetry:||Excellent, VeryGood, Good||Sample Order:||Welcome|
0.008ct Lab Grown Melee Diamonds,
0.005ct Lab Grown Melee Diamonds,
1mm vvs melee diamonds
1mm DEF Color VVS VS Clarity Excellent Cut Lab Grown Melee Diamonds For Making Lab Diamond Jewelry
Lab Grown Melee Diamonds Description
Lab-grown diamonds are diamonds grown in the laboratory using equipment that simulate the growth environment of natural diamonds. Both laboratory-grown diamonds and natural diamonds are real diamonds. The main chemical components of laboratory-grown diamonds and natural diamonds are carbon.
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, introduces suitable metal catalysts, such as Fe, Co, Ni, Mn, Cr, etc., and can synthesize diamond at temperatures above 2000K and tens of thousands of atmospheres.
CVD stands for chemical vapor deposition, which is another method of making diamonds in the laboratory. The growth of this kind of diamond requires proper pressure and temperature of the hydrocarbon gas mixture in the vacuum chamber. In detail, CVD diamonds are grown in a vacuum chamber filled with a mixture of hydrocarbons. An energy source breaks down the gas molecules, and the carbon atoms are adsorbed down to the flat diamond seeding disk at a lower temperature. The crystallization process takes several weeks, and multiple crystals grow at the same time.
Every few days, the diamond is taken out, the top surface of the diamond is polished, and the non-diamond carbon elements are removed from it, and then returned to the growth chamber. Each batch of diamonds may need to go through several cycles, and the entire growth process takes three to four weeks.
Parameters of Lab Grown Melee Diamonds
|Lab Grown Melee Diamonds Details|
|Brand Name||Yuda Crystal|
|Name||Lab Grown Melee Diamonds|
|Diamond Carat Weight||0.005-0.008 carat|
|Diamond Cut||Excellent, Very Good,Good|
|Polish||Excellent, Very Good,Good|
|Symmetry||Excellent, Very Good,Good|
|Available Type||HPHT, CVD|
|Application||Jewelry Decorations Rings Earring Necklace|
|Place Of Origin||Zhengzhou, China|
|Delivery Time||1 - 7 Working Days Base on Order Quantity|
|Payment Terms||100% Payment In Advance|
|Payment Methods||T/T, PayPal, Western Union, Bank Transfer|
|Shipping way||DHL, FedEx, SF Express, UPS, EMS, TNT etc|
|Diamond Type||Synthetic(lab created)|
|Fire Dispersion||0.044(Same as Natural Diamond)|
|Brilliance Refraction Index||2.42(Same as Natural Diamond)|
|Relative Density||3.52(Same as Natural Diamond)|
|Chemical Composition||Carbon(Same as Natural Diamond)|
|Moh's Hardness||10(Same as Natural Diamond)|
Lab Grown Melee 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|
|Properties||Earth Mined||Lab Created|
|SP3 Carbon Diamond Bonds (%)||100%||100%|
|Internal Crystal Structure||Face-Centered Cubic||Face-Centered Cubic|
|Color||Various Grades||K to D grades|
Lab Grown Melee Diamonds Details