天然钻石协会：2025实验室培育钻石研究报告（英文版）（16页）.pdf

1、1Diamond ReportsLABORATORY-GROWN DIAMOND FACTSSummaryQUICK FACTSCOVER IMAGE:Unpolished laboratory-grown diamonds created through Chemical Vapour Deposition method(CVD)|DIAMOND REPORTS:Laboratory-Grown DiamondsLaboratory-grown diamonds are mass-produced in potentially unlimited quantities within days

2、 or weeks in factories located primarily in China and India.Natural diamonds are rare gemstones that formed deep within the Earth up to 3.7 billion years ago.Laboratory-grown diamonds are manufactured products that have the same crystal structure as natural diamonds and have nearly the same chemical

3、,physical and optical properties when polished.They are not identical to natural diamonds and are always distinguishable with professional equipment*.*Gemological Institute of America.Available at:https:/4cs.gia.edu/en-us/simulants-moissanite-and-lab-grown-diamonds/SOURCES:Laboratory-grown diamonds

4、and natural diamonds have very different creation processes.IMAGE CREDIT:GIAUnpolished laboratory-grown diamonds created via High Pressure High Temperature(HPHT)method.IMAGE:Unpolished laboratory-grown diamonds created via Chemical Vapour Deposition(CVD)method.3MANUFACTURING LABORATORY-GROWN DIAMOND

5、S REQUIRES LARGE AMOUNTS OF ENERGY IN ORDER TO SUSTAIN FOR DAYS/WEEKS TEMPERATURES UPWARDS OF AROUND.AND LARGE AMOUNTS OF WATER TO COOL REACTORS.2,000 F(DEGREES FAHRENHEIT)*VS1 clarity,FGH colourOVER70%ARE PRODUCED IN CHINA AND INDIA WHERE MOST GRID ELECTRICITY IS GENERATED FROM FOSSIL FUELS(COAL).O

6、NLY A FEW LABORATORY-GROWN DIAMONDS ARE PRODUCED USING RENEWABLE ENERGY.Three terms can be used in the marketing of laboratory-grown diamonds:laboratory-grown diamonds laboratory-created diamonds andsynthetic diamonds.*Can vary according to national regulation.Approved Terminology OnlyIMAGE CREDIT:E