中華玉文化發展的早期階段包括神玉時期和王玉時期，那時只有王、貴族及部落首領才能佩玉；玉不但是擁有權力和財富的標志，而且是通達神靈、借神之力、匯聚天地靈氣的媒介。孔子曰：“君子比德與于玉”；“君子無故，玉不去身”，是以玉比做高貴品格的同義詞、以佩玉顯示人的好德。
The early stage of the development of Chinese jade culture includes Shenyu period and Wangyu period, when only kings, nobles and tribal leaders could wear jade. Jade is not only a symbol of power and wealth, but also a medium to access gods, borrow the power of gods and gather the aura of heaven and earth. Confucius said: "a gentleman compares virtue with jade"; "a gentleman does not go to the body without a reason", which is a synonym of noble character by comparing jade and showing good virtue by wearing jade.
高古玉多為帝王皇家達官貴人用玉，從用料、制作工藝、文化氣息上有著厚重深奧的內涵。除了欣賞古人的琢玉技藝、品味高古玉中神韻飛揚的歷史文化內涵以外，把玩一塊高古玉，就像品讀著年代久遠的歷史的傳奇，手中古玉演繹的人間故事隱約可觀，古意融融，人玉靈通，把玩者的心境是不可以用語言表述的。價值不菲的高古玉，琢制技藝十分精湛，無論是淺浮雕、透雕，還是陰線刻畫，均拙樸細精，其中的"漢八刀"和雙溝碾法(又稱"游絲毛雕")如今更是難以模仿。
Gaogu jade is mostly used by emperors, royal officials and nobles. It has profound connotation in terms of materials, production technology and cultural atmosphere. In addition to appreciating the ancient jade carving skills and appreciating the historical and cultural connotation of the charm flying in the high-quality jade, playing with a piece of high-quality jade is like reading a long-standing historical legend. The human story deduced by the ancient jade in the hand is indistinct and considerable, and the ancient meaning is harmonious and the human jade is smart. The mood of the player can not be expressed in words. The high-value high-value ancient jade has exquisite carving skills. Whether it is shallow relief, openwork or shadow line depiction, it is simple and refined. Among them, "Han Badao" and Shuanggou grinding method (also known as "gossamer carving") are more difficult to imitate.
鑒賞高古玉有許多方法。除了傳世品，高古玉深藏地下兩三千年以上，會發生一些"質變"，比如氧化白斑(俗稱灰皮)、鈣化、瓷化、晶狀物析出、次生物出現。不同的物質沁入玉器里面，就給玉器帶來了各種各樣的顏色，叫做沁色。有紅沁、朱砂沁、土沁、水沁、金屬沁、水銀沁等。受沁程度要因土壤、氣候、壓力、溫度等條件而異。這些色沁一般都由表及里地去分布，有一種層次感、靈動感和通透感，看上去很自然，很舒服。而現代沁染的玉器，發色死，附在表面，沒有層次感。
There are many ways to appreciate Gao Gu jade. In addition to the handed down products, some "qualitative changes" will occur when the high-grade jades have been hidden underground for more than two or three thousand years, such as oxidized white spots (commonly known as gray skin), calcification, porcelain, crystal precipitation, and secondary organisms. Different materials into the jade, it brings a variety of colors, called Qinse. There are red Qin, Zhu Sha Qin, soil Qin, water Qin, metal Qin, mercury Qin, etc. The soil, climate, pressure, temperature and other conditions vary. These colors are generally distributed from the outside to the inside. They have a sense of hierarchy, flexibility and permeability. They look natural and comfortable. Modern jades, however, have a dead color, attached to the surface, without a sense of hierarchy.
此件高古玉青蛙，尺寸67x40x20mm，重量約94克，由于年代久遠，玉器表面有一層厚厚的氧化皮殼，以致玉器表面不平整有自然的起伏和坑洼，散發柔和的光澤，摸上去手感滑潤不澀，坨工底部線條和表面皮殼包漿一致，自然混為一體。一面坡工藝特征明顯，線條轉折起伏有力，直刀干凈利落，坨起坨落，線痕兩頭輕中間重；曲線婉轉自如，體現西周已經能熟練的運用青銅坨具，可以在極小的轉彎半徑里坨刻出漂亮的弧線。通心對鉆孔道，一頭大一頭小，孔道中間細小，孔道中間有沁，孔道口光滑。再來看下沁色。
This high ancient jade frog is 67x40x20mm in size and weighs about 94g. Due to its long history, there is a thick oxide skin on the surface of the jade, so that the jade surface is uneven, with natural ups and downs and potholes. It emits a soft luster. It feels smooth and smooth. The bottom line of the tuogong is consistent with the coating of the shell on the surface, which naturally mixes into one. On one side of the slope, the features are obvious, the line turning is strong, the straight knife is clean and neat, the two ends of the line mark are light and the middle is heavy; the curve is graceful and free, which shows that the Western Zhou Dynasty was able to skillfully use bronze Tuo tools, and can carve beautiful arcs in the tiny turning radius. Through the core drilling hole, one end is big, the other is small, the middle of the hole is small, there is a Qin in the middle of the hole, and the hole mouth is smooth. Let's have a look at Qinse.
對于高古玉的沁色，清代劉大同的《古玉辯》寫的最為細致和優美，古玉的沁色變化萬千，難以一概而論，自然沁色，難以人為模仿。這件商周玉青蛙多彩沁色，黑紅黃褐色，五彩斑斕，非常漂亮。有通過絡隙外面滲入而產生的彩色沁，也有玉內質變產生的沁色變幻，內外交輝，變化層次豐富，非常美麗。
As for the color of Gao Guyu, the Qing Dynasty Liu Datong's "ancient jade debate" wrote the most detailed and beautiful. The color of ancient jade changes thousands of times, which is difficult to generalize. It is natural and hard to imitate. This jade frog of Shang and Zhou Dynasties is colorful, black, red, yellow and brown. It is very beautiful. There are the color changes produced by the infiltration of the outside of the network gap, and also the Qin color changes generated by the qualitative change of the jade. The internal and external interaction is brilliant, and the change level is rich and very beautiful.
此件藏品現在展賣于藝品在線商城平臺中，據持寶人介紹說，這件高古玉青蛙是祖上傳下來的。在本公司得知其有這件罕見珍品，特邀其持這件高古玉青蛙參加，現持寶人因資金周轉困難原因。忍痛割愛愿將此件高古玉青蛙委托本公司代其通過網絡媒體進行尋找買家。如對此藏品有興趣收藏者，可撥打企業聯系電話：400 686 3616進行洽談。
The collection is now on sale in the art online mall platform. According to the treasure holder, the jade frog was handed down by the ancestors. The company learned that he had this rare treasure, and invited him to take part in it. Now the holder of the treasure has difficulty in capital turnover. We are willing to entrust this jade frog to our company to find a buyer through network media. If you are interested in this collection, you can call the enterprise contact number: 400 686 3616 for negotiation.
