DIGEST 市场指标 PEARL REPORT | 50 | 2025-2026 600 Improved evaluation Giga Pearl 千兆珍珠。 Photo courtesy 图片来源 ：gigapearl.com Weight in kilograms of the Giga Pearl, the largest non-nacreous pearl to date, according to Guinness World Records. The natural baroque pearl was front and centre at the Beneath the Surface exhibition in Toronto, Canada in March 2025. The pearl belongs to Filipino-Canadian art collector Abraham Reyes, who inherited the Giga Pearl from his grandfather. Total number of natural saltwater pearls in a three-row necklace by Chaumet. The exceptional piece, which comes with an accompanying certificate that highlights the regularity and quality of the pearls, was among the star lots at Christie’s auction in Paris in June 2025. The Gemological Institute of America (GIA) is enhancing the way it evaluates nacre, which is a key factor included in all GIA pearl classification reports. This is an important update to its well-established GIA 7 Pearl Value Factors™ pearl classification system, according to the institute. During the classification service, the nacre of a pearl, strand or other items will be evaluated based on the degree of eye-visible movement (nacre variation) found on either the surface or sub-surface layers of nacre, in addition to the post-harvest condition including wear, damage, modifications and treatments, and trade standards for thickness. The nacre will fall into one of GIA’s five classification ranges (Excellent, Very Good, Good, Fair and Poor), which will be stated on all GIA pearl classification reports. Amount in tonnes of freshwater pearls produced in Zhuji, China in 2024. Known as the world’s largest freshwater pearl production and distribution centre, the town contributed 70 per cent of total freshwater pearl supply worldwide. In 2024, Zhuji generated sales of pearls of more than RMB50 billion (around US$6.98 billion), according to government data. 根据吉尼斯世界纪录，世界最大天然无珍珠层珍珠“千兆珍 珠”(Giga Pearl)的按公斤算重量。这颗天然巴洛克珍珠是今年 3月在加拿大多伦多举办的“表象之下”展览的主角。这颗珍珠 属于菲律宾裔加拿大艺术收藏家Abraham Reyes，他从祖父那 里继承了这颗珍珠。 出自尚美巴黎的三行项链中天然海水珍珠的总数。这件珍 品是今年6月巴黎佳士得拍卖会上的焦点之作。这条项链 附有证书，强调了珍珠的均匀性和品质。 GIA美国宝石研究院宣布将GIA珍珠分级报告引入更详细珍珠层评级。这次是GIA珍珠分级系统- GIA珍珠质量评估七要素(GIA 7 Pearl Value Factors™)的重要扩展。 在分级报告服务中，珍珠、串珠或其他物品的珍珠层将根据在表面或内层的可见变化（珍珠层变异）进行评估，并考虑后期状 况，包括磨损、损坏、修改和处理，以及厚度的贸易标准。珍珠层将被划分为GIA的五个分类范围（极优、优良、良好、尚可和不良）， 并会在所有GIA珍珠分级报告中明确标示。 2024年中国诸暨市淡水珍珠按吨算产量。作为全球最大 的淡水珍珠生产和分销中心，诸暨市贡献了全球淡水珍珠 总供应量的70%。据政府数据显示，2024年诸暨珍珠销售 额逾500亿元人民币(约69.8亿美元)。 27.65 改进评级 191
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