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Meet Marvin

Marvin's fascination with gemstones started at an early age. Born in northeastern Brazil, he grew up exploring the mines in the area and learned how to work on a jeweler’s bench. He studied at the GIA and earned certifications in diamonds, diamond grading, and colored stones.

Marvin has worked in the retail and wholesale gemstone industry, but nothing brings him more satisfaction than selling rare and exotic gems and jewelry on Gem Shopping Network. He loves that his customers have the opportunity to bid on auctions and negotiate prices on unique pieces. Marvin loves to showcase handcrafted estate jewelry and he enjoys explaining the history and folklore of gemstones on his shows.

When he has time off Marvin spends his time outdoors fishing, skiing, and traveling with his family. .

 

Marvin On the Air

Time Zone
TIME SHOW SHOW HOSTS
MONDAY, DECEMBER 10, 2018
7:00 PM-3:00 AM Elegant Jewelry Designs & Colored Gemstones
Show Details
A collection of modern jewelry featuring invisible set gems along with international estate collections. Presented by Gem Shopping
Marvin & Jason
WEDNESDAY, DECEMBER 12, 2018
2:00 PM-7:00 PM The World of Jewelry & Gemstones
Show Details
World class gems and jewelry from around the world featuring top designer brands and one-of-a-kind pieces.
Marvin & Wes
THURSDAY, DECEMBER 13, 2018
7:00 PM-3:00 AM Designer & Collectable Jewelry
Show Details
Prolific gem hunter, Don Kogen, curates vibrant gem collections in timeless settings. Presented by Gem Shopping
Marvin & Jason
SATURDAY, DECEMBER 15, 2018
9:00 PM-3:00 AM Designer & Collectable Jewelry
Show Details
Prolific gem hunter, Don Kogen, curates vibrant gem collections in timeless settings. Presented by Gem Shopping
Marvin & Kurt

MARVIN'S FAVORITE GEMSTONES

Marvin's favorite gems are tourmalines and opals, and he wishes he could
"show you the journey each gem has made to reach you."
Opal

Opal

This gemstone is primarily mined in Australia and stones come in a full spectrum of color. The most common are the milky white and green stones while the red against black are the most rare. Opals are valued by the fire or play of color when looked at from different angles. Deposits of these stones are also found in the United States, Czech Republic, Turkey, Indonesia, Brazil, Ethiopia, and Guatemala.

Learn more at GemU
Tourmaline

Tourmaline

This stone consists of more color variants than any other gemstone in the world. Usually rich in iron these stones run from black to bluish-black to deep brown. Depending on the trace elements colors can be blue, green, red, yellow, and pink. Crystals can be bi-colored or multicolored and some stones change color when viewed from different angles. Tourmaline from Sri Lanka was first introduced to Europe by the Dutch East India Company. Today tourmaline is mined in Brazil, Africa, Tanzania, Kenya, Afghanistan, Pakistan and the United States.

Learn more at GemU
 
  • Gem Shopping Network, Inc., Jewelers  Retail, Duluth, GA
  • American Gem Trade Association
  • Diamond Council of America
  • Jewelers Vigilance Committee

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