Finding the ad shown below in a copy of the Jeweler's Circular from 1902 prompted some researching of this company.  Here's what I've found so far (Mar 09)....

There is a small webpage for the company today that says this:

"Importers of Fine Cultured Pearls - brand: "Orienta" ....Originally founded in 1896 specializing in genuine pearl jewelry, Leys, Christie & Co, Inc......Our product line features the Start-Her Necklace program which allows our customers the flexibility of completing a necklace at their convenience.  ...In addition, we provide a range of assembled cultured pearl jewelry featuring earrings, necklaces, bracelets, pendants, rings, brooches and tie tacks."

I found 3 trademarks:

Start-Her-Necklace - first used 1951, expired

Orienta - first used 1917 - dead (status as of 2006)

  trademark first used - 1899 (although note the difference from the one shown in the ad above) - shown as status cancelled as of 2007

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Interestingly they are shown at the same New York address in 1956 trademark records as the one shown in the 1902 ad.  Later correspondence shows another address. 

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Official Gazette of the United States 1909 - trademark number 72287
Annual Report of the Commisioner of Patents 1912 - trademark number 82699
(ed: was unable to find these in the current trademark online database)

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The Trow Copartnership and Corporation Directory of NY 1909 - Leys, Christie & Co (James D Leys & Abraham S Christie)

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Biographical Directory of the State of New York - 1900 - James D Leys, manufacturing Jewelry..65 Nassau st NY, born in Scotland, May 1867, married (ed note: date is difficult to read in the book scan).