IGI Diamond Reports give an accurate assessment of a diamond's cut, color, clarity and carat weight according to strict international standards. Offered in different formats to serve consumer needs across diverse worldwide markets, every report is issued according to the strict international standards and security features for which IGI is known.
The Stone name is synonymous with pioneering work in the field of hydraulics - and for generations, Stone has brought industrial solutions to market that are powerful, yet still highly compact and energy-efficient. Today, as a member of the SPX FLOW group of advanced engineering brands, Stone is continuing to build on that longstanding reputation.
Diamond professionals use the grading system developed by GIA in the 1950s, which established the use of four important factors to describe and classify diamonds: Clarity, Color, Cut, and Carat Weight. Diamonds can be fashioned into a variety of shapes and still be beautiful. These are known as the 4Cs.
We are a U.S. based manufacturer. We manufacture The Kwik-Way Valve Refacer, The Van Norman Flywheel Grinders, and Irontite Diesel Engine Tooling and Additives. INTERNATIONAL We Sell to The World. We have distributors in many countries around the world. More. Made in the USA. Our factory is located in Eastern Iowa where we manufacture all the ...