Ask Neil: How Can a GIA Graduate Gemologist Help Me Get the Best Offer For My Jewelry?

GIA Graduate Gemologist Las Vegas

Are you planning to sell some of your jewelry? This month’s Ask Neil issue will elaborate on how a GIA Graduate Gemologist can help you get a fair payout for them!

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Nevada Coin Mart offers a free in-person and online evaluation of your stuff (NO OBLIGATION TO SELL).

Let’s begin with the organization that provides the Graduate Gemologist Program. The Gemological Institute of America or GIA is a non-profit institute founded in 1931. It aims to protect gem buyers and sellers by providing education and facilitating research on gems and jewelry. It is the author of the International Diamond Grading System™ and 4Cs (Cut, Clarity, Color, and Carat Weight) – the world’s standard for evaluating diamond quality and value.

The Graduate Gemologist Program of GIA equips its students with the knowledge and training to be successful in their chosen jewelry-related career paths. In general, below are some of the stuff graduates of the program can do:

  • Evaluate diamond quality based on the 4Cs and the GIA International Diamond Grading System™ 
  • Evaluate gemstone quality based on the GIA Colored Stone Grading System
  • Identify gemstones, alongside their characteristics and treatments
  • Identify gemstone simulants
  • Make the best use of gemological equipment
  • Recognize how gem characteristics and market influence gem value 

In other words, a GIA Graduate Gemologist can provide you with relevant insights about the quality and value of your jewelry to know how much you deserve to get paid for them. 


Nevada Coin Mart is the only specialty buyer in Las Vegas with a GIA Graduate Gemologist. It is, in fact, owned by one – Neil Sackmary, yours truly. I have been a practicing GIA Graduate Gemologist for more than 20 years already.

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Nevada Coin Mart carries an A+ rating from the BBB of Southern Nevada since 2015.

I started my professional life as a diamond buyer in New York. Certainly, the experience groomed me in recognizing rare and exquisite diamond pieces. Time passed and my passion for gemstones grew stronger, leading to my decision to take GIA’s Graduate Gemologist program. Today, my customers benefit from my wealth of knowledge and experience. 

Some of the  jewelry I buy are as follows:

  • Diamond Jewelry
  • Rings
  • Necklaces
  • Earrings
  • Pendants
  • Navajo Jewelry
  • Scrap and Broken Jewelry
  • Antique, Vintage, and Estate Jewelry

Nevada Coin Mart pays based on the resale market value and only charges a small commission per sale. Therefore, it guarantees the highest possible cash offer for your stuff always. 

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For 2018 and 2018, Nevada Coin Mart was the Best of Las Vegas Gold Winner in three categories: Unique Place to Buy a Gift, Gold and Rare Coins, and Antique/Collectibles.


Visit us at Jones and Flamingo for a free evaluation (NO OBLIGATION TO SELL). We are open from 9 am to 6 pm, all the days of the year! You can also get a free evaluation through these options accessible 24/7: fill out the online form, chat us on our website, call us at 702 998 4000, or text pictures of your items to 702 706 6811 (no calls). ‘Till next time!