All Authors

Mark Turnowski

Mark Turnowski, President of online diamond retailer, Engagement Rings Direct, has been a prominent member of the diamond industry for over 33 years. Mark”™s career began in 1976 as a Senior Staff member at the Gemological Institute of America (GIA) in New York. Mark has held various positions in the diamond industry ever since. He left GIA in 1978 and became a private consultant to the diamond trade, specializing in re-cutting diamonds to maximize their clarity and cut. This position put him in contact with many members of the diamond manufacturing community which he utilizes today when selecting the finest diamonds for his customers. In the following years, Mark has held the position of the First laboratory Director of the International Gemological Institute (IGI). Mark has also been hired as an appraiser for numerous accounting firms such as Peat Marwick and Arthur Anderson. In 1996 Mark started his own jewelry design company entitled MTI Designs, which featured custom designs in rings, earrings, necklaces and pendants.

In 2001, Mark founded the online based wholesale jewelry company, Engagement Rings Direct. ERD specializes in bringing wholesale diamonds and custom jewelry to the online community.

Engagement Rings Direct

Bryan Boyne

Bryan Boyne is a GIA Graduate Gemologist, AGS Registered Jeweler, and Vice President of Whiteflash Inc. His career in the diamond and jewelry business spans over 35 years.

His early work was in the area of colored gemstones gradually transitioning to diamonds where his primary focus is today. Along the way he has been involved in all major aspects of the jewelry industry from buying rough gems in exotic locations around the globe, to designing and manufacturing finished jewelry. In 1999 he was recruited by the first publicly traded company selling diamonds and jewelry online,, where he was Operations Manager of the Diamond Division. In 2003 Bryan built and operated his own fine jewelry e-commerce business,, which was acquired by Whiteflash in 2009. Today his primary duties revolve around education and communications for Whiteflash. He is also intimately involved in purchasing, sales and sales training, content creation, web development and company messaging.

After graduating from Rice University with a degree in Political Science and before entering the jewelry trade, Bryan played three years of professional baseball, hence his nickname “Texas Leaguer."

Diane Ferraro

Diane Ferraro is the Advertising Director at Robbins Brothers - The Engagement Ring Store, based in Los Angeles, California. Since 2001 she has worked on television, radio, print, social media, public relations and digital marketing campaigns for the company. Diane also puts together try-on parties at each of the store locations in Southern California and Texas where Tacori, Simon G., Scott Kay, Michael M., Ritani, Jeff Cooper, Phyllis Bergman, Verragio and America”™s other leading bridal designers present their collections and meet soon-to-be-engaged couples.

Robbins Brothers

Ephraim Ramhari

Ephraim Ramhari is an anonymous diamond trade member.

Jim Summa

Jim Summa first started making jewelry at the age of 14, when his sister gave him a jewelry tool kit. In high school he took classes in silver fabrication and casting. Upon graduating Jim left the suburban St. Louis community of Kirkwood for the Penland School of Arts and Crafts in North Carolina where he apprenticed in silversmithing. With the energy and curiosity of a young man, Jim left the States to work, study, and explore, traveling through Japan, Thailand and Laos. There in Southeast Asia he discovered the joy of working with gemstones fresh out of the ground. Jim eventually traveled to Los Angeles and the Gemological Institute of America to earn his Graduate Gemologist credentials. He maintains his certification as a CGA through the American Gem Society. Returning to St. Louis with formal training in metalsmithing, diamonds and gemstones, Jim worked for five years with a highly respected local jeweler before opening his own trade shop; first in downtown St. Louis and later in his home town of Kirkwood, Missouri. In 2000 he purchased and completely renovated a historic building in downtown Kirkwood to serve as the home of Summa Jewelers. His renovation of this building to include an antique showroom downstairs and a spacious, fully equipped jewelry workshop upstairs has won several awards from an appreciative community.

Summa Jewelers