Jewelry at the 2012 Grammy Awards was a mix of bold contemporary pieces and more delicate, feminine designs that were in sync with the lacy and textured gowns that many of the women wore. A Grecian theme was apparent among some of the celebrities who walked the red carpet, too, in both the jewelry and the gowns.

Grammy Awards Jewelry Gallery

_{Photo of Katy Perry by Jason Merritt/Getty Images}

Her tumultuous marriage to Bobby Brown and ongoing problems with substance abuse were not a secret, but most people were stunned when 48 year old Whitney Houston passed away on February 11. Whitney won't be forgotten by her fans and fellow musicians, and tributes to her talent are occurring worldwide. Let's take a look back at some of the jewelry she wore during her long career.

_{Photo of Whitney and Cissy Houston by Vinnie Zuffante/Getty Images}

Moissanite is a mineral that was discovered in 1893 by Dr. Henri Moissan, a French scientist. The Nobel Prize-winner was the first person to find tiny amounts of this natural silicon carbide within a meteorite. Synthetic moissanite can be grown in labs, but some gemologists do not feel that current synthetic versions used in jewelry are exactly like true moissanite... read more about moissanite

_{Photo of Henri Moissan in 1900 © Buyenlarge/Getty Images}

The Associated Press and other news sources are reporting that 48 year old Whitney Houston died today. Whitney's unique singing style, often a blend of pop and gospel, resulted in hundreds of awards. She starred in popular movies, too, including The Bodygard, with Kevin Costner, and The Preacher's Wife, with Denzel Washington. Whitney struggled with substance abuse, more so during her 14 -year marriage to R&B singer Bobby Brown.

Whitney came from a musical family that included her mother, gospel singer Cissy Houston, and cousins Dione Warwick and Dee Dee Warwick. Aretha Franklin was her godmother.

A look back at Whitney Houston's style:

• Whitney Houston in 2000 & 2009
• Whitney Houston at the 2009 American Music Awards

_{2009 Photo of Whitney Houston by Kevin Winter/Getty Images}