Pre-Auction Analysis: May 16th, 2023, Sotheby’s Geneva
Pre-Auction Analysis: May 16th, 2023, Sotheby’s Geneva, Magnificent Jewels and Noble Jewels Our Sotheby’s Geneva, Pre-Auction Analysis focuses on elements that are not always visible to the untrained eye. We discuss characteristics such as Inner-Grade, Color Dispersion, and Undertone – collectively termed IDU. Professionals use the IDU method intuitively when analyzing a Fancy Color Diamond. […]