JNA Jan/ Feb 2021

INNOVATION 24 | JNA Jan/Feb 2021 G übelin has developed an innovative rating system aimed at meeting the industry’s need for a universal language to evaluate coloured gemstones – the Gübelin Gemstone Rating. According to the company, the assessment is made using a comprehensive yet easy-to-understand point system where high-quality coloured gemstones are given at least 75 out of 100 possible points. Using special parameters, a gem’s beauty and rarity are expressed in a single number: The Gübelin Points. In addition, coloured gems are assigned a designation based on their Gübelin Points rating as “exceptional” (97.5- 100 points), “outstanding” (95.0-97.4 points), “excellent” (92.5-94.9 points), “superior” (90.0-92.4 points), “fine” (85.0- 89.9 points), “good” (80.0-84.9 points) or “fair” (75.0-79.9 points). Raphael Gübelin, president of the House of Gübelin, explains the pertinent components of the Gübelin Gemstone Rating system. | Bernardette Sto. Domingo 杜明高 | Raphael Gübelin, president of the House of Gübelin, talks about a new rating system for coloured gemstones that offers orientation, increased transparency and product comparability to ultimately aid buyers in making educated purchasing decisions. 古柏林總裁 Raphael Gübelin 暢談全新的彩色寶石評級系統；該評分制度為買家提供客觀數據、 加強透明度及便於比較的特質，有助寶石買賣時作為參考。 Gübelin ups the ante on gemstone rating 古柏林提升寶石評級制度