Jewels and Jadeite Hong Kong Thursday, June 23, 2022 | Phillips

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    • - One oval-shaped diamond, 20.30 carats

      GIA Report: D colour, Flawless clarity, Excellent Polish and Symmetry
      Diamond Type Classification Report: Type IaB diamond
      附美國GIA證書

    GIA Report: D colour, Flawless clarity, Excellent Polish and Symmetry
    Diamond Type Classification Report: Type IaB diamond
    附美國GIA證書

  • Catalogue Essay

    D Flawless Oval-Shaped Diamond
    D Flawless diamonds are prized for their exceptional colour and clarity. To be graded D Flawless, means these diamonds achieve the highest possible colour and clarity grade. Under very strict laboratory conditions, only the finest, whitest diamonds are certified D colour and Flawless clarity.
    Flawless diamonds have no internal inclusions and no external blemishes. Flawless diamonds are very rare—so rare, in fact, that it’s possible to spend a lifetime in the jewellery industry without ever seeing one, and they command top prices.
    A beautifully finished diamond is spectacular, with every facet demonstrating the craftsman’s skill and care. When a diamond interacts with light, every angle and every facet affect the amount of light returned to the eye. This is what gives it its face-up appearance.
    A diamond’s proportions determine how light performs when it enters the diamond. Diamonds with different proportions and good polish make better use of the light, and will be bright, colourful, and scintillating. A beautiful diamond looks the way it does because of three optical effects: white light reflections called brightness, flashes of colour called fire, and areas of light and dark called scintillation.
    Precise artistry and workmanship are required to fashion a rough, so its proportions, symmetry, and polish deliver the brilliant return of light only possible in a diamond.

    Oval-Shaped
    An Oval cut diamond is attractive and unique. It is a subtle update to the classic round brilliant cut yet does not stray too far from tradition. The slender body of the oval diamond creates a beautiful, elongated appearance. It often makes the hand and fingers appear slender.
    The modern oval cut diamond was designed by a Russian diamond cutter named Lazare Kaplan in the mid-1950s, who perfected the oval cut process. His technique significantly improved the brilliance of the oval diamond. The process that Kaplan pioneered is what diamond cutters use to create oval cut stones today, which includes 58 facets to enhance the brilliance of the diamond. Today, the oval cut is one of the most impressive when it comes to brilliance and sparkle.
    Lot 608 is a superb 20.30 carat D, Flawless diamond that has been afforded the highest colour and clarity from the GIA but also received Excellent grades for both Polish and Symmetry, a true example of perfection in its highest form.

    足色全美:橢圓形D色無瑕鑽石
    D色無瑕鑽石因其精美絕倫的成色與淨度而備受推崇。一顆鑽石的顏色和淨度需達至最高等級,才能被評定為「D色無瑕」。在極度嚴格的實驗室條件之下,只有最頂級、純淨亮白的鑽石才能獲得 D 色無瑕的等級認證。
    無瑕鑽石不含內含物,亦無外部瑕疵。如此稀有的鑽石價格高昂、舉世難尋,即使是從事珠寶行業的業內人士,窮盡一生都未必能夠遇見一顆。
    一顆切工精美的鑽石,每個刻面均能體現工匠的技藝與匠心,令人嘆為觀止。當鑽石與光線接觸,不同的刻面與角度均會影響光線的折射方式,從而賦予鑽石獨一無二的外觀。
    鑽石的切割比例,決定了光線射鑽石內部後呈現的效果。不同比例的鑽石,經過良好的打磨工序後,能反射更多亮光,使鑽石表面顯得更為明亮、閃爍動人。一顆鑽石之所以能夠閃耀生輝,主要由三種光學效果構成,分別為亮光(brightness,鑽石反射出的白光)、火彩(fire,散出的耀眼色彩),以及閃光(scintillation,所呈現的明暗區域)。
    打磨原石時,鑽石工匠在切割工序中需慎之又慎、務求精確,才能使鑽石的比例、對稱度和拋光達至最佳平衡,展現璀璨光芒。

    橢圓形切割
    橢圓形鑽石為傳統的圓形明亮式切割增添新意,同時不失傳統美,典雅迷人、獨特不凡。橢圓形鑽石外型細長,優雅而高貴,能令佩戴者的手和手指更顯修長。
    現代橢圓形切割由俄羅斯鑽石切割師拉扎爾・卡普蘭(Lazare Kaplan)在 1950 年代中期研發,完善了橢圓形切割工藝。他所研發的橢圓形切割共有58個切面,顯著提升了橢圓形鑽石的明亮度,此後一直傳承至今。時至今日,橢圓形切割已成為增強鑽石亮度與火彩的不二之選。
    拍品編號608 D色無瑕鑽石重20.30克拉,造工精湛,其成色及淨度獲美國寶石學院(GIA)評為最高等級,具極優打磨及對稱度,可謂足色全美的最佳典範。

608

An Unmounted Diamond

- One oval-shaped diamond, 20.30 carats

GIA Report: D colour, Flawless clarity, Excellent Polish and Symmetry
Diamond Type Classification Report: Type IaB diamond
附美國GIA證書

Estimate
HK$12,000,000 - 15,000,000 
$1,500,000-1,900,000

Contact Specialist

Charlene Lau
Head of Jewels, Hong Kong
+852 2318 2039
[email protected]

Jewels and Jadeite

Hong Kong Auction 23 June 2022