A diamond's journey through our laboratory is one of sophisticated assessment and analysis. From intake through inscription, every step is performed with careful attention to detail and thorough, transparent reporting. See how Your Diamond Story may be told to the world with confidence, in this descriptive video.
A peek behind the scenes from IGI Worldwide
Recently the IGI Lab in Shanghai received an antique Etruscan revival style necklace from the mid to late 19th century. When the necklace was submitted, IGI gemologists immediately understood the reason it was sent for identification: It seemed to weigh less than it should and, therefore, was suspected to be made of gilt copper, rather than gold.
Our planet's supply of diamonds were produced by four different processes. One took over a million years to achieve results. The next have been working in laboratories and factories, with increasing success, since the 1950s. But until this month man had never replicated that final process.
Jewelers of America and IGI are pleased to present an educational webinar at 2:00 PM Eastern Time Wednesday December 2. Learn physical differences, distinctive characteristics and quality-factors attributable to growth methods and timelines.
Shopping by computer and smartphone is on the rise, with no sign of stopping. In the interest of serving consumers and retailers alike, IGI recently introduced a new digital platform for loose or mounted diamonds, gemstones and jewelry items.
This 10+ carat HPHT produced lab-grown diamond was initially graded Fancy Intense Yellow by IGI. When it returned to the lab its color had been changed to Fancy Vivid Pink. IGI confirmed that the color had been shifted from yellow to pink through irradiation using a 5MeV Electron Beam Transfer system.
Gemstones and fancy-colored-diamonds appear in all the colors of the rainbow, at different shades, with different intensities. Since the human eye can distinguish around 13 million shades and nuances of color, gemologists have developed a consistent method of mapping a gemstone's proper position in the broad 'Color Universe.'
Rough sellers are partnering with technology providers to facilitate digital-scans, videos and potential polishing plans for rough diamonds to their customers. Originally intended to facilitate pre-selection of choices ahead of traditional tenders, remote-purchasing has now become an option.
An exciting discovery was made by Gemologists examining a beautiful red ruby under the microscope. The arrows and needles they found don't just give hints as to the country of origin, they can also indicate when the gemstone has undergone treatment.
Have you heard of X-Ray diamond sorting? If not, be my guest and travel behind the scenes to an alluvial diamond-mining operation overseen by our friends at Alrosa. They have provided an amazing video example of this efficient method of separating the wheat from the chaff, as it were.
When the Great Imperial Crown was made for the coronation of Catherine the Great in 1762 the court jewelers believed they were topping over 5,000 diamonds and pearls with an enormous 398 carat ruby. But it was never so. They had been fooled by a charming imposter.