International S Co

An internally flawless diamond is a diamond that does not have any visible inclusions under a 10x magnification.

Yes, the International Silver Company produced real silver products. The hallmark "IS," however, refers to the brand and does not indicate purity, as International Silver mass produced silverplated flatware and holloware as well as sterling. In order to determine if the piece is real silver, look for the standard marks that indicate purity — the number 92.5 or 925 and the word “sterling” are indicators of sterling quality.

When an object is described as “silver” or “sterling silver,” it means that it contains 92.5% pure silver (the remaining 7.5% consists of copper and/or other alloys). The purity standard was first established in England and later adopted in the United States. The mark on antique British sterling-silver pieces is the lion passant (a lion walking to the left), which signifies a work is 92.5 percent pure sterling; if it’s not there, it is likely silverplate — or not English.

International Silver was a Connecticut conglomerate formed from 17 companies in 1898. It was once the largest manufacturer of silver and silver-plated products in the world.

Find antique International Silver Company serveware, platters and decorative objects for sale on 1stDibs.

No, the International Silver Company is not still in business. In 1981, the company stopped producing silver due to financial troubles. By 1983, its assets had undergone complete liquidation, and in 1984, Katy Industries Inc. purchased the company. On 1stDibs, shop a selection of International Silver Company silver wares.

Tiffany & Co. is so famous due to its rich heritage. A young Franklin Delano Roosevelt proposed to his future wife, Eleanor, with a Tiffany ring in 1904. Vanderbilts, Whitneys, Astors and members of the Russian imperial family all wore Tiffany & Co. jewels. And Jacqueline Kennedy Onassis preferred Tiffany china for state dinners at the White House. In addition, Tiffany & Co. helped put diamonds on the map in 1886 by introducing the American marketplace to the solitaire diamond design, which is still among the most popular engagement ring styles. Explore a variety of Tiffany & Co. jewelry on 1stDibs.

The legendary American luxury house Tiffany & Co. is currently owned by Moët Hennessy Louis Vuitton (LVMH), which completed the acquisition of the company in January, 2021. The firm started out modestly — Charles Lewis Tiffany and John B. Young founded it in Connecticut as a “stationery and fancy goods emporium” in 1837, at a time when European imports still dominated the nascent American luxury market. Upon Charles’ death in 1902, his son Louis Comfort Tiffany took over artistic direction for the brand. On 1stDibs, find authentic Tiffany & Co. pieces from some of the world's top sellers.