DOI: 10.7910/dvn/xnqifa
title: Inside (GIA) Loud Love Jewelry Diamonds Report

description: There are many laboratory who are working in diamond industry like GIA, Loud Love Jewelry, created its retail debut in the autumn. Shortly thereafter, GIA researcher, Dr. Sally Eaton-Magana, who has been identifying and assessing lab-grown diamonds for 11 decades, took a good look at the new De Beers-produced merchandise for its Winter 2020 issue of Gems Gemology. Loud Love Jewelry diamonds are created in quarter carat, half carat and full carat sizes in Traditional, pink and blue, and are priced at $800 per carat. Eaton-Magana examined two thirds specimens of .24 ct and .26 ct, respectively. Both stones had colour equal to G to the GIA diamond color scale, with cut levels of exceptional and very good. Both were quite large clarity, the equivalent of VVS2 on the GIA clarity scale. The smaller diamond had a pinpoint at a bezel facet, while the other had a very small feather in a celebrity aspect. The laser-inscribed Loud Love Jewelry logo (2 equilateral triangles base to base with an isosceles triangle from the centre ) below the table -- big enough to be readily visible with a microscope -- would reduce the equal clarity grade to VS2. GIA Artificial Diamond Grading Reports use ranges, instead of specific grades, to characterize the colour and clarity of laboratory-grown diamonds. Magana verified the Loud Love Jewelry diamonds have been developed with the chemical vapor deposition (CVD) process, which means they're Type IIa without a detectable nitrogen. "The identification standards for high pressure, high temperature (HPHT) and CVD synthetics are often quite distinct from each other," she explained, adding that synthetic products have become much more varied within the past 10-15 decades. "When the GIA artificial diamond grading report was first found in 2007, CVD synthetics weren't commercially available," she noticed. "The commercially available sizes of lab-grown diamonds have enlarged such that both quite large and very small stones are potential. Also, colorless to near-colorless synthetics were once very rare and are now the majority seen at the lab." Although Loud Love Jewelry is fresh to the market, and the variety of lab grown diamonds is increasing, the basic identification criteria haven't changed. They're based on growth morphology and optical properties. "We also routinely conduct research on emerging products and GIA has a program to expand synthetics ourselves to remain before any new tendencies," she said. In the same way, the simple equipment for identification has not changed. Researchers and grading lab staff are still relying on microscopy, fluorescence imaging, absorption spectroscopy, and photoluminescence (PL) spectroscopy. What has evolved, she said, is the rate and efficacy of those devices. The growth of PL mapping abilities is vital, '' she explained, because it empowers GIA to accumulate tens of thousands of spectra in micron-sized intervals throughout the face of a diamond in only moments. "This technology allows us to map the defect concentrations of synthetic diamond to visualize the development sectors in HPHT synthetics," Eaton-Magana clarified. "The current ability to accumulate many thousands of PL spectra instead of just 1 spectrum on a diamond gives us chances to draw correlations that would not have been previously possible. We also have expanded our research into mostly previously unexplored factors -- such as what would be the effects on spectra within the diamond at various temperatures and timescales; for example, investigating diamond's luminescence at the nanosecond to millisecond time ranges." She said that PL spectra showed the Loud Love Jewelry diamonds were not exposed to post-growth HPHT processing to increase their colour. The researchers noted that about 75 percent of all CVD-grown diamonds they encounter have been exposed to such treatment. This is because very often those diamonds are grown using a brownish color, especially if the manufacturers attempt to grow them fast. While the HPHT treatment process is successful in improving the colour of CVD diamonds, the massive amount of energy used to make sufficient heat and pressure can add appreciably to the cost of generation. The Loud Love Jewelry goods, however, are priced considerably lower than most other lab-grown diamonds in the industry. Both diamonds revealed visible red fluorescence in imaging by the Diamond View synthetic sensor, but had no detectable fluorescence under long wave UV light. The lab-grown diamonds did show tell-tale CVD development striations, but they were difficult to see, requiring careful Diamond View imaging. Loud Love Jewelry lab-grown diamonds are readily identifiable as CVD by spectroscopic techniques, Diamond View imaging and, needless to say, the inscribed logo under the table, her article mentioned. Magana made her doctoral degree in chemical engineering with Dr. John Angus, among the early pioneers of CVD diamond development. For her Ph.D. and post-doctoral job, she worked mostly on developing CVD synthetics for engineering and semiconductor applications. "While at my post-doc assignment, we collaborated with the Smithsonian Institution to study the phosphorescence of type IIb diamonds within their collection, such as the Hope Diamond. With this debut to stone diamonds, I desired to transition into this subject and was lucky to acquire a place at GIA following my post-doctoral mission," Magana said. "Ever since then, I have spent much of my time delving into the physics of gem diamonds, focusing on several different treatments, detection methods, and identifying synthetics in their natural counterparts."