Jadeite, Gem Set and Diamond Ornament, Mason Tsai

Designed as a scooter with movable front and rotating black jadeite wheels, the hinged seat embellished with a highly translucent intense emerald green jadeite plaque and pavé-set circular-cut diamonds, detailed by colourless jadeite cabochons, a russet jadeite plaque, blue chalcedony, green sapphires, citrines, diamonds and black diamonds, mounted in 18 karat blackened, white and yellow gold, signed MT,  measurement approximately 89.00 x 54.00 x 32.00mm.  

Please note that the wheels of the scooter are black jadeite and not onyx as stated in the text of the printed catalogue. Accompanied by Hong Kong Jade & Stone Laboratory certificate numbered SJ 154656, dated 1 August 2017, stating that the jadeite tested is natural, known in the trade as "A Jade". Please refer to the certificate for further details. Signed MT for Mason Tsai, and stamped 750 for 18 karat white and blackened gold. All jadeite of highly translucent materials; one plaque of intense emerald green colour, under strong illumination, there are some typical clouds and a surface reaching internal fissure; one plaque suffused with brilliant russet streaks to the lighter background, under strong illumination, there are minor typical clouds and a few internal fissures; and three colourless cabochons with very good clarity, under strong illumination, there are a few specks of typical clouds; majority inclusions are not noticeable under normal lighting. Black jadeite wheels are opaque, one with a few streaks of white clouds. Blue chalcedony of light blue colour and medium saturation. Gemstones estimated to weigh approximately 0.50 carat in total; one green sapphire of light saturation; four citrines of brownish orange colour and medium saturation; all are eye-clean, with some nicks and abrasions. Diamonds and black diamonds estimated to weigh approximately 2.60 carats in total; colourless diamonds are on average F to H colour and tinted diamonds of light yellow colour, mainly VS clarity; as gauged and graded in the mounting. Signs of very little wear to the metal, overall in excellent condition.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.Certificates of Authenticity: Various manufacturers may not issue certificates of authenticity upon request. Sotheby's is not under an obligation to furnish the purchaser with a certificate of authenticity from the manufacturer at any time. Unless the requirements for a rescission of the sale under the Terms of Guarantee are satisfied, the failure of a manufacturer to issue a certificate will not constitute grounds to rescind the sale. Gemological Certificates and Reports: References in the catalogue descriptions to certificates or reports issued by gemological laboratories are provided only for the information of bidders, and Sotheby's does not guarantee and accepts no responsibility for the accuracy, terms or information contained in such certificates or reports. Please also note that laboratories may differ in their assessment of a gemstone (including its origin and presence, type and extent of treatments) and their certificates or reports may contain different results.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

Accompanied by Hong Kong Jade & Stone Laboratory certificate numbered SJ 154656, dated 1 August 2017, stating that the jadeite tested is natural, known in the trade as "A Jade".