PEARL REPORT 2021

PEARL REPORT | 29 | 2021-2022 創新科技 It is specifically and exclusively for three major types of cultured pearls, namely Akoya, South Sea and Tahitian, on the condition that no previous identification or advanced testing has been performed on the pearl. If a pearl is found by GIA gemmologists as having been modified by treatment, except in routine processes, or not belonging to one of the accepted pearl categories, the pearl service will automatically change to a pearl identification report. Clients may submit loose pearls or those mounted, strung, or in a fixed design layout for a strand or jewellery item. The Cultured Pearl Classification service includes a detailed classification of the cultured pearl based on the GIA 7 Pearl Value Factors™ – size, shape, colour, lustre, surface, nacre and matching – as well as a digital image of the item. GIA 7 Pearl Value Factors™ GIA 珍珠價值 7 要素 ™ • Size 尺寸 Stated in mm and rounded off to two decimal places 用毫米表示，精確到小數點後兩位 • Shape 形狀 Round, near-round, oval, button, drop, semi-baroque or baroque. Pearls not falling into these categories are described as they appear 描述為圓形、近圓形、橢圓形、鈕扣形、水滴形、半異形 和異形。不屬於這些類別的珍珠，將按其外觀進行描述 • Colour 顏色 A combination of the pearl’s dominant body colour, overtone and orientation 珍珠的主體色、伴色和暈彩的結合 • Luster 光澤 The light reflected from or near the surface of the pearl, evaluated by the intensity and the sharpness of reflection 珍珠表面或表面附近的反光情況，依據反射的強度和清 度來評估 • Surface Quality 表面品質 Blemishes or irregularities confined to the pearl’s surface, taking into account the size, number, nature, location, visibility and type of surface characteristics 依據珍珠的表面特徵或不規則進行判定，考慮包括表面特 徵的大小、數量、本質、位置、能見度和類型 • Nacre 珍珠層 Nacre quality is the condition of a pearl’s nacreous surface. Nacre quality is related to nacre layering during a pearl’s growth, which affects lustre, surface and durability 珍珠層品質是對於珍珠表面珍珠質的衡量，其品質與母 貝在珍珠生長時的珍珠質分泌狀況有關，並影響珍珠的光 澤，表面和耐久性 • Matching 匹配性 The uniformity of appearance in strands and multiple pearl groups or items 一串珍珠或多粒珍珠外觀的一致性 珍 珠，象徵着純潔和內斂，簡約而不失典雅。其種類 十分多元化——完美無瑕的圓形珍珠、獨一無二的 巴洛克珍珠或精緻的珍珠鏈——不斷地出現在珠寶設計師們 廣為流傳的作品之中。多年來， GIA 美國寶石研究院推出了 各種令貿易過程中的珍珠鑑定技術更現代化的舉措。其創 立的珍珠價值7要素 ™ ——超過 70 年的開創性研究，提供了 系統化的方式來評估養殖珍珠，並以更清晰流暢的方式來描 述該類珍珠的質量。除創立珍珠鑑定報告及珍珠鑑定與分級 報告外， GIA 美國寶石研究院更基於其珍珠價值 7 要素 ™ ， 於今年全新推出 GIA 養殖珍珠分級報告 (GIA Cultured Pearl Classification Report) 服務，為養殖珍珠提供更有效的評估 方式。 GIA 養殖珍珠分級報告是為未經處理的養殖珍珠提供 分級信息的精簡報告。報告包括基於 GIA 珍珠價值7要素 ™ 對所提交珍珠進行詳細分級的信息，以及提交珍珠的數字圖 像。此報告適用於三種主要類型的養殖珍珠(阿古屋珍珠、南 洋珠和大溪地珠)，前提是在此之前沒有對珍珠進行過鑒定或 進行任何進一步的測試。如 GIA 寶石學家發現所提交的珍珠 經過處理(常規加工工藝除外)或不屬於可接受的珍珠類型， 珍珠分級服務將自動更改為珍珠鑑定報告服務。客戶提交的 養殖珍珠可以是未鑲嵌珍珠、已鑲嵌珍珠、珠串、項鏈或其 他珍珠設計飾品。 For any GIA pearl report enquiries, please visit https://www.gia.edu/gem-lab-service/pearl or email to h [email protected] . 如有任何有關珍珠報告的疑問，請流覽以下網址 https://www.gia.edu/gem-lab-service/pearl 或 發送電子郵件至 [email protected] GIA Cultured Pearl Classification Report GIA 養殖珍珠分級報告