Porter's Diamond Model for Competitive Advantage, the diamond model of effectiveness by Edward Lawler III and Leavitt's Diamond Model provide multi-faceted blueprints for sustainable success.

A pricey diamond brooch was found hiding in plain sight within an innocuous box of jewelry when the box was brought in for a routine valuation. Most of the items were worth little more than about ...

Anglo American's (OTCQX:AAUKF) (OTCQX:NGLOY) De Beers diamond unit said Thursday it is shutting down its Lightbox lab-grown diamond jewelry brand ... to a cost-plus model as they have diverged ...

Nathan Reiff has been writing expert articles and news about financial topics such as investing and trading, cryptocurrency, ETFs, and alternative investments on Investopedia since 2016.

Jewelry experts weighed in on the ... In late 2011, musician John Legend proposed to model Chrissy Teigen with a dazzling cushion cut diamond on a pavé eternity band. Alex Rodriguez proposed ...

Hailey Bieber is cherishing her new role. The model sweetly honored her baby boy, Jack Blues, with new jewelry, sporting a diamond “mom” ring. She wore the style on her left hand in a photo ...

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