| Lab grown & natural diamonds | |
| lab grown diamonds | natural diamonds |
| grown in a lab | mined from the earth |
| created in months | created over billions of years |
| offer incredible value | prized for their rarity |
Does lab grown diamonds have GIA certified?
Yes. GIA is the abbreviation of the Gemological Institute of America. GIA is an authority in the diamond industry. The certificate issued by GIA is recognized by the industry.Diamonds have always been bought for GIA certificates. Diamonds with GIA certificates are not more secure. Consumers will also be more at ease. Maybe you only know that GIA only issues certificates for natural diamonds, but with the increase in synthetic diamonds, gia not only issues certificates for natural diamonds, but also provides synthetic diamond identification and grading services. GIA has been grading laboratory-grown diamonds since 2007. Beginning July 1, 2019, GIA Laboratory-Grown Diamond Reports and identification reports no longer use the term “synthetic.” The GIA Laboratory-Grown Diamond Report includes the standard GIA color, clarity and cut grading scales for reference purposes.
Specification
| Item | Value |
| Brand name | Yuda Crystal |
| Model number | YuDa-HPHT |
| Place of origin | Henan,China |
| Usage | Jewellery,for polishing,rings |
| Hardness | 10 Moh's |
| Payment term | 100% payment in advance |
| Shipping ways | DHL,FEDEX,UPS.EMS |
| Delivery Time | 3-14 Working Days Base on Order Quantity |
Real Diamond and Fake Diamond
| Diamond | Type | Material | Moh's Hardness | Brilliance Refraction Index | Relative Density | Fire Dispersion |
| Real | Natural | C | 10 | 2.42 | 3.52 | 0.044 |
| Real | Lab grown | C | 10 | 2.42 | 3.52 | 0.044 |
| Fake | Moissanite | SIC | 9.25 | 2.65 | 3.21 | 0.104 |
| Fake | Zircon | Zr02 | 8.25 | 2.20 | 5.7 | 0.066 |
Who are we?
Henan YuDa Crystal Co., Ltd. are based in ZhengZhou city.We are specialized in the export and import business of lab grown diamonds more than 10 years. YuDa is a professional company in all synthetic diamond applications, our main products are cvd diamond, hpht diamond, and customized diamond by your requirements. Our products enjoy a good reputation and are sold to Europe, America, Southeast Asia, South Africa and other countries and regions.
They are professional and do well in management with strong learning attitudes and innovation awareness for stable work. Strong human resources and excellent company culture accelerate the healthy, fast and sustainable development of the company.