There does not appear to be any jewelry available online with the stamp of WTi. It may be that of the maker of the jewelry. The best way to find out the authenticity of a piece of jewelry is to bring it to a reputable jeweler.
West Texas Intermediate (WTI) crude oil is of very high quality and is at refining a larger portion of gasoline. Its API gravity is 39.6 degrees, which makes it a "light" crude oil, and it contains only about 0.24 percent of sulfur (making a "sweet" crude oil). Brent Blend is actually a combination of crude oil from fifteen different oil fields located in the North Sea. It is still a "light" crude oil, but not quite as "light" as WTI, and it contains about 0.37 percent of sulfur (making it a "sweet" crude oil, but again slightly less "sweet" than WTI). Brent blend is good for making gasoline and middle distillates. WTI is more expensive than Brent.
Sai is a Jewelry brand.
No, NYMEX (New York Mercantile Exchange) is a commodity futures exchange where various energy products, including WTI (West Texas Intermediate) crude oil, are traded. WTI crude oil refers specifically to the grade of crude oil that is used as a benchmark for oil prices in the United States.
the number usually helps jewelry makers keep track of each piece of jewelry she/he makes
A silversmith!
the number usually helps jewelry makers keep track of each piece of jewelry she/he makes
the number usually helps jewelry makers keep track of each piece of jewelry she/he makes
Thomas Sabo makes all kinds of jewelry including necklaces, watches, bracelets, pendants, charms, and cuff links. He makes his jewelry in sterling silver and diamonds.
WTI likely stands for "Western Technologies Inc." or a similar company name, which may be the manufacturer or designer of the ring. Alternatively, it could be a code used for internal tracking or identification purposes.
the jewelry oxidizes when it gets wet. Like copper does when its outside.
I read somewhere that it meant Silver Unlimited and that it is a company that makes jewelry. Hope this helps.