Jim Rentfrow

Jim Rentfrow

Jim Rentfrow is a faceter who is based out of Moorhead, MN. He was trained by a local jeweler in Fargo, ND whose inventory is known for its precision cutting. What started as a hobby quickly became an obsession with finding the best material and cutting designs from around the world. Jim suppliers jewelers and private collectors from around the globe. He is an active contributor to One World Gemstone and the Custom Gemstone Studio. Jim uses his own faceting designs as well as designs from Jeff Hunt, Jeff Graham, Maco Voltoloni and many other well known designers.


Flawless Facets

Last 5 articles of this author

Cushion Cutting – Step by Step

Wed, 16 Mar 2011

This article is the second in a series on how gemstones are faceted. This gemstone cutting tutorial takes the reader from rough gemstone to a finished 4.59 carat cushion. The original piece of rhodolite garnet rough was 10.2 carats and was shaped well for a cushion cut.

Read More...


Gemstone Cutting – Step by Step

Tue, 12 Oct 2010

I am often asked by clients, friends and family about how gemstones are faceted. I designed this photo pictorial to illustrate to the steps of the gemstone cutting process. The gemstone I selected for this first pictorial was a 13.3ct piece of rhodolite garnet from Africa. Due to the shape of the rough, I chose an oval design for the finished gemstone. The pictures below show the gem progress from a piece of rough to a finished gemstone. Each photograph is described in depth to highlight what is occurring during the gemstone cutting process.

Read More...