Resultado da Busca
Há 2 dias · Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.
Há 4 dias · Diamond Color. The color evaluation of most gem-quality diamonds is based on the absence of color. A chemically pure and structurally perfect diamond has no hue, like a drop of pure water, and consequently, a higher value. GIA's D-to-Z color-grading system measures the degree of colorlessness by comparing a stone under controlled lighting and ...
Há 1 dia · The work was carried out as part of the custody conservation and restoration project, organized by the Chapter of Toledo Cathedral and the Cultural Heritage Institute of Spain. The detailed results of this study have recently been published as a chapter in the book dedicated to the overall conservation and restoration project of the custody (ISBN: 978-84-8181-846-8).
Há 2 dias · The International Gemological Institute (IGI) will begin issuing grading reports for moissanite through a partnership with jewelry company Charles & Colvard. The certificates, which will cover both loose gemstones and moissanite jewelry, will feature unique identifiers that tie them back to each laser-inscribed stone, IGI said last week. The ...
Há 4 dias · Cleaning your gemstone before certification is crucial to ensure it looks its best and is accurately evaluated. Start by soaking it in warm, soapy water for about 20 minutes. Use a mild dishwashing liquid for the solution. After soaking, gently scrub the gemstone with a soft toothbrush to remove any dirt or grime.
Há 4 dias · 24 May 2024, 8:28 am. Charles & Colvard, Ltd, a fine jewellery company specializing in moissanite and lab-grown diamonds, has announced a strategic partnership with the International Gemological Institute (IGI) to introduce comprehensive grading reports for moissanite gemstones and jewellery. Don O'Connell, President and CEO of Charles ...
Há 5 dias · Charles & Colvard Ltd., the fine jewelry company specializing in moissanite and lab-grown diamonds, has formed an “exclusive strategic alliance” with the International Gemological Institute to...
