An article by the GIA finds that rapid progress has been made in recent few years in High-Pressure, High-Temperature (HPHT) technology. It is able to make melee-size diamonds around 2–3 mm in diameter and large colorless single crystals, and they all feature significantly improved quality and growth rate.
A range of leading global gem labs and technology firms are to exhibit their technology and equipment which detect synthetic diamonds at the Diamond Detection Expo & Symposium (DDES 2015) in December.
In addition, seminars and panel discussions featuring experts and trade members are also planned.
Singapore-based IIa Technologies, the world leader in grown diamond technology, announced the launch of the world’s largest diamond greenhouse, a 200,000 square foot, state-of-the-art facility that has successfully conceptualized and developed a revolutionary, commercially-viable diamond growing process for colorless, high-quality, type IIa diamonds.
Pure Grown Diamonds says it has created the largest laboratory-grown diamond which it grew in late November and is certified by the International Gemological Institute.
It is a near colorless 3.04 carat, round stone, I color, SI1 clarity, very good cut stone that is up for sale for $23,012 on Pure Grown Diamonds' website.
Two new devices that are the most advanced developed by the Gemological Institute of America (GIA) for identifying synthetic diamonds were unveiled at a special ceremony at the Israeli bourse and are available for use by exchange members in the technology wing of the trading hall.
India's Gems and Jewellery Export Promotion Council (GJEPC) is launching an operation to discover which diamond factories in Surat are manufacturing synthetic stones.
The launch of the probe follows alarm in the worldwide diamond trade recently over undisclosed lab-created diamonds being sold with natural melee stones, including in India.
Indian diamond industry umbrella body, the Gems and Jewellery Export Promotion Council (GJEPC), has an investigation into which diamond plants in Surat, the country’s largest diamond cutting and polishing center, are manufacturing synthetic stones.
Members of the global diamond industry may still get the nomenclature wrong, calling them synthetic diamonds stones, but no matter what the name lab-created, lab-grown or cultured diamonds are causing considerable panic. Almost without trace, the output of factory-created diamonds has grown to an all-time high.
Call them lab-created or lab-grown or cultured diamonds or, less accurately, synthetic stones. Call them what you will, but there is no doubt that the issue of such diamonds is once again causing widespread concern in the diamond industry globally. The production of factory-created diamonds is at an all-time high, indeed experts say that never in the past has it been possible to make them so easily and relatively inexpensively.
Gemesis, a largest distributor of gem-quality, lab-grown diamonds, announces the sale on its site of what it calls the purest and largest Type IIa white diamond currently achieved.