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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 : 1-15 Working Days Depends On Quantity
Packaging Details : Carton box
Product Name : CVD Lab Grown Diamonds
Brand : Yuda Crystal
Grade : High
Assortment : Good
Color : EFG
Clarity : VVS VS SI
Carat Weight : 14-15ct
Cut : Uncut
Technology : CVD
Shape : Rough, Raw
Usage : Cutting CVD Polish Diamonds
Component : Carbon
Hardness : Moh's 10 Scale
Available Type : HPHT, CVD
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 : None
Symmetry : None
Sample Order : Welcome
Treatments Applied : None
Enhancement : None
Square Shape EFG Color VVS VS SI Quality 14.0 - 15.0 Carat CVD Diamond Manufacturer For 5carat Cvd Polish Diamonds
CVD Diamond Description
Lab-grown diamonds, as the name suggests, are diamonds made in a laboratory.
 Many people may think that because they are grown in a laboratory, they are all artificial diamonds and fake diamonds. In fact, making lab diamonds just uses high technology to simulate the environment in which diamonds are formed in the earth's crust, and then accumulate carbon atoms layer by layer to form rough stones. The rough stone is no different from the original diamond dug from the ground.
There is almost no difference between lab grown diamonds and natural diamond. lab grown diamonds and natural diamond both are real diamond. But strictly speaking, lab grown diamonds and natural diamond have different nitrogen content. The main difference between lab grown diamonds and natural diamond is that nitrogen exists in different forms.
The production process of lab grown diamonds has been very advanced, even experts need to use special equipment to distinguish them. The structure of man-made diamond is not the complete octahedral structure of natural diamond, but a complex structure.
In July 2018, in the latest jewelry guide, the US Federal Trade Commission revised the definition of diamond, which has been used for 62 years, and deleted the word "natural". This shows that people's recognition and acceptance of synthetic diamonds undoubtedly greatly encouraged the synthetic diamond market.
Parameters of CVD Diamond
| CVD Rough Diamonds Details | |
| Brand Name | Yuda Crystal | 
| Name | CVD Rough Diamonds | 
| Diamond Color | EFG | 
| Diamond Clarity | VVS-SI | 
| Diamond Carat Weight | 14-15carat | 
| Diamond Cut | Uncut | 
| Technology | CVD | 
| Size | Customization | 
| Shape | Raw, Square | 
| Application | For Cutting Lab Grown Loose Diamonds | 
| Place Of Origin | Zhengzhou, China | 
| Delivery Time | 1 - 15 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 | 
| M.O.Q | Negotiable | 
| Diamond Type | Synthetic(lab created) | 
| Location | Zhengzhou, China | 
| Treatments Applied | None | 
| 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) | 
CVD Diamond 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 | ||
| Properties | Earth Mined | Lab Created | 
| Guaranteed Conflict-Free | No | Yes | 
| Hardness (MOHS) | 10 | 10 | 
| SP3 Carbon Diamond Bonds (%) | 100% | 100% | 
| Internal Crystal Structure | Face-Centered Cubic | Face-Centered Cubic | 
| Hardness Comparable | 2.42 | 2.42 | 
| Relative Diversity | 3.52 | 3.52 | 
| Color Diffusion | 0.044 | 0.044 | 
| Color | Various Grades | K to D grades | 
| Price | $$$$$ | $$$ | 
CVD Diamond Details

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| EFG VVS VS SI 14.0 To 15.0 Carat CVD Diamond Images | 
 E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds
                                                                                    
                        
                        
                        
                                                            E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds
                                                    
                        
                     Square 6mm To 8mm EF Color CVD HPHT Diamond Chemical Vapor Deposition
                                                                                    
                        
                        
                        
                                                            Square 6mm To 8mm EF Color CVD HPHT Diamond Chemical Vapor Deposition
                                                    
                        
                     11.0 Carat 12.0 Carat CVD Rough Diamonds EF Color VS Plus For Loose Diamonds
                                                                                    
                        
                        
                        
                                                            11.0 Carat 12.0 Carat CVD Rough Diamonds EF Color VS Plus For Loose Diamonds
                                                    
                        
                     8mm 10mm DEF Color Raw CVD Rough Diamond 7.0ct To 12.0ct
                                                                                    
                        
                        
                        
                                                            8mm 10mm DEF Color Raw CVD Rough Diamond 7.0ct To 12.0ct
                                                    
                        
                     GHI Color VS VVS 9 Carat 10 Carat CVD Rough Diamonds Big Size
                                                                                    
                        
                        
                        
                                                            GHI Color VS VVS 9 Carat 10 Carat CVD Rough Diamonds Big Size
                                                    
                        
                     12mm 14mm FG Color Rough CVD Synthetic Diamond
                                                                                    
                        
                        
                        
                                                            12mm 14mm FG Color Rough CVD Synthetic Diamond
                                                    
                        
                     6.0ct 7.0ct CVD Rough Diamonds Uncut Unpolished Diamond For Fancy Oval Diamonds
                                                                                    
                        
                        
                        
                                                            6.0ct 7.0ct CVD Rough Diamonds Uncut Unpolished Diamond For Fancy Oval Diamonds
                                                    
                        
                     Rectangular GHI Color 8.0 9.0 Carat CVD Rough Diamonds For Enagement Ring
                                                                                    
                        
                        
                        
                                                            Rectangular GHI Color 8.0 9.0 Carat CVD Rough Diamonds For Enagement Ring
                                                    
                        
                     9mm 11mm GHI Color CVD HPHT Raw Uncut Diamond 8.0ct To 8.99ct
                                                                                    
                        
                        
                        
                                                            9mm 11mm GHI Color CVD HPHT Raw Uncut Diamond 8.0ct To 8.99ct
                                                    
                        
                     VS SI 3.0ct 4.0ct 5.0ct CVD Rough Diamonds Custom For 1 Carat Loose Diamond
                                                                                    
                        
                        
                        
                                                            VS SI 3.0ct 4.0ct 5.0ct CVD Rough Diamonds Custom For 1 Carat Loose Diamond