Comprising: a necklace, a bracelet and a pair of earclips, designed as clusters of variously-cut sapphires and round diamonds, necklace length 13½ inches, bracelet length 6 inches, necklace signed V.C.A. N.Y., numbered 25027.1, bracelet signed Van Cleef & Arpels N.Y., numbered 31412, earclips signed V.C.A. N.Y., numbered 25027.2; circa 1965.

In good condition, with superficial scratches not visible when worn. The bracelet mounting tests as platinum, the necklace and earclips test as white gold. The necklace set with round, oval, cushion and emerald-cut sapphires ranging from approximately 3.30mm in diameter to 15.90 x 12.30 mm, of violet, violet blue and blue hue, medium to light in tone, light to moderately strong saturation, sapphires range from very slightly included to significantly included, minor wear with occasional abraded facet junctions. The necklace set with diamonds weighing approximately 4.40 carats, approximately G-I color, VS-SI clarity. The bracelet set with round, oval and cushion-cut sapphires ranging from approximately 4.20 mm in diameter to 12.70 x 8.70 mm, predominantly violet blue to blue in hue with a few scattered purple stones. Sapphires range from very slightly included to significantly included, minor wear with abraded facet junctions. The bracelet set with diamonds weighing approximately 7.25 carats, approximately F-H color, VS clarity. The earclips set with round, oval and cushion-cut sapphires ranging from approximately 3.80 mm in diameter to 12.20 x 9.70 mm, of violet blue to blue hue, sapphires range from very slightly included to significantly included. The earclips set with diamonds weighing approximately 0.65 carat, approximately G-H color, VS clarity.
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.

In 1972, Claire Chalk and her husband Roy donated a spectacular 37.82-carat Colombian emerald to the Smithsonian’s National Museum of Natural History. Now known as the Chalk Emerald, the gemstone was said to have formed the centerpiece of an impressive diamond necklace in the collection of the rulers of Baroda.  Harry Winston, recognizing its superlative color and clarity, acquired the emerald and mounted it in its current form of a diamond-set ring. While a patron of Winston, Mrs. Chalk’s jeweler of choice was Van Cleef & Arpels, from whom she acquired many pieces throughout her life, including the elegant sapphire and diamond suite offered here. In addition to supporting her husband to build a successful business empire, Claire was involved with many philanthropic endeavors, particularly the American Heart Association and the American Cancer Society.