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{"title":"Uncut VVS VS SI HPHT Rough Diamond DEF Lab Created Diamonds For Jewelry","imgUrl":"https:\/\/img.chinax.com\/nimg\/85\/f4\/dc9c733f628cb904d6da7394fc2d-200x200-1\/uncut_vvs_vs_si_hpht_rough_diamond_def_lab_created_diamonds_for_jewelry.jpg","attrs":{"Brand Name":"Yuda Crystal","Model Number":"YD-A","Certification":"None","Place of Origin":"Zhengzhou, China"}}
{"title":"DEF SI VS VVS HPHT Lab Raw Uncut Rough Diamond 8.0ct To 20.0ct","imgUrl":"https:\/\/img.chinax.com\/nimg\/d9\/bf\/a3a62437a7268b6d8af13dc4b0ab-200x200-1\/def_si_vs_vvs_hpht_lab_raw_uncut_rough_diamond_8_0ct_to_20_0ct.jpg","attrs":{"Brand Name":"YUDA CRYSTAL","Model Number":"YD-A+","Certification":"None","Place of Origin":"Zhengzhou, China"}}
{"title":"VS1 SI2 No Blue No Grey Rough Diamonds HPHT 3.0ct 4.0ct For Jewelry","imgUrl":"https:\/\/img.chinax.com\/nimg\/11\/b9\/3dd19aea7ac677e42b933cba4e76-200x200-1\/vs1_si2_no_blue_no_grey_rough_diamonds_hpht_3_0ct_4_0ct_for_jewelry.jpg","attrs":{"Brand Name":"YUDA CRYSTAL","Model Number":"YD-A+","Certification":"None","Place of Origin":"Zhengzhou, China"}}
{"title":"4.0ct 5.0ct Synthetic HPHT Rough White Diamonds VVS VS D F For Necklace","imgUrl":"https:\/\/img.chinax.com\/nimg\/e6\/9c\/f1d777ada7986037a61683430ec5-200x200-1\/4_0ct_5_0ct_synthetic_hpht_rough_white_diamonds_vvs_vs_d_f_for_necklace.jpg","attrs":{"Brand Name":"YUDA CRYSTAL","Model Number":"YD-A+","Certification":"None","Place of Origin":"Zhengzhou, China"}}
{"title":"DEF Full White Rough Lab Grown Diamonds 0.1cm To 2cm Mohs 10 Scale For Loose","imgUrl":"https:\/\/img.chinax.com\/nimg\/83\/4e\/1d314d6f87677d68c938aa61edfe-200x200-1\/def_full_white_rough_lab_grown_diamonds_0_1cm_to_2cm_mohs_10_scale_for_loose_diamonds.jpg","attrs":{"Brand Name":"YUDA CRYSTAL","Model Number":"YD-A+","Certification":"None","Place of Origin":"Zhengzhou, China"}}
{"title":"5mm 6mm Rough Lab Grown Diamonds High Pressure High Temperature DEF VVS VS","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/65\/f4848399cbfe5e9c3a1373eba8ea-200x200-1\/5mm_6mm_rough_lab_grown_diamonds_high_pressure_high_temperature_def_vvs_vs.jpg","attrs":{"Brand Name":"YUDA CRYSTAL","Model Number":"YD-A+","Certification":"None","Place of Origin":"Zhengzhou, China"}}
{"title":"1 Carat Laboratory Grown HPHT Rough Diamond White 0.5ct Polish Lab Diamonds","imgUrl":"https:\/\/img.chinax.com\/nimg\/a6\/08\/835ed54c497a4b7686bad600767f-200x200-1\/1_carat_laboratory_grown_hpht_rough_diamond_white_0_5ct_polish_lab_diamonds.jpg","attrs":{"Brand Name":"YUDA CRYSTAL","Model Number":"YD-A+","Certification":"None","Place of Origin":"Zhengzhou, China"}}
Uncut Diamond VVS VS SI HPHT Diamond DEF color Lab Created Diamonds For Jewelry
The origin of lab grown diamond? In 1954, synthetic diamonds were successfully synthesized for the first time. Researchers made a diamond in the laboratory. They imitated the environment where diamonds were formed in nature and applied extremely high temperature and pressure to carbon, thus giving birth to diamonds. The method is called HPHT diamond. Also in the 1950s, another method of manufacturing synthetic diamonds was developed. This is called CVD, which deposits carbon from a carbon-containing gas mixture into diamonds at very low pressure and relatively low temperature. In 1963, China successfully cultivated the first man-made diamond. In 1971, GE in the United States cultivated gem-level cultivated diamonds for the first time. In 1988, De Beers in the United Kingdom successfully cultivated cultivated diamonds with colorful colors.
How to distinguish LAB GROWN DIAMONDS from NATURAL DIAMONDS? In the early days, due to the inadequate technology of lab grown diamonds, diamond dealers could distinguish between man-made diamonds and natural diamonds in a very simple way. Because man-made diamonds contain metal crystals remaining in the manufacturing process, strong magnets can be let make man-made diamonds sucked up.However, with the continuous improvement of man-made diamond technology, the original old methods are no longer available. At present, man-made diamonds need special appraisal institutions and appraisal instruments to achieve. Now, only a few laboratories in the world have the ability to distinguish man-made diamonds and natural diamonds. At present, the world’s three major professional jewelry appraisal agencies GIA, IGI and HRD have recognized the status of man-made diamonds. At the same time, the appraisal agency can issue a certificate of identification and grading of cultivated diamonds, and each diamond has a unique code inscription at the diamond waist
Diamond
Real Diamond
Fake Diamond
Natural Diamond
Lab Diamond
Zircon
Moissanite
Specification
Item
Value
Brand name
Yuda Crystal
Model number
YuDa-HPHT
Place of origin
Henan,China
Diamond weight
1.5-2.0ct
White diamond color
D E F
Diamond clarity
VVS VS SI
Payment term
100% payment
Shipping ways
DHL,FEDEX,UPS.EMS
Delivery Time
1 - 7 Working Days Base on Order Quantity
Lab grown & natural diamonds
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
Who are we? Henan YuDa Crystal Co., Ltd. Are based in ZhengZhou city.YuDa Company is manily selling White HTHP Diamond CVD Diamond,Yellow Synthetic Diamond,and PCD with good raw metarial, advanced technology equipment , impeccable testing machine, strictly quality control. We are manufacturer and trade,we have top quanlity goods , good service and reasonable price,anyway,we do our best to help our clients. FAQ Q:Do you provide samples? Is it free or not?
A: Yes, we provide samples,but not for free. Q:What are your terms of payment? A: We accept Paypal,T/T,Western Union and MoneyGram. Q: Which express company do you use? A: As usual we used DHL,UPS ,FEDEX Or Brinks.
Yuda Crystal is one of the world's leading lab grown diamond companies, mainly active in fields: Gem quality lab grown rough(Including HPHT and CVD) diamonds manufacturing and wholesale, lab grown polish diamonds manufacturing and wholesale, Industrial grade HPHT and CVD lab grown diamonds ... Yuda Crystal is one of the world's leading lab grown diamond companies, mainly active in fields: Gem quality lab grown rough(Including HPHT and CVD) diamonds manufacturing and wholesale, lab grown polish diamonds manufacturing and wholesale, Industrial grade HPHT and CVD lab grown diamonds ...