The GRI Story

Your source to nature's most precious gifts!
If you find jewelry shopping stressful, tedious, and time consuming, you might be in the market for a private jeweler. Sounds exclusive? It is, but you may also be surprised to learn that this personal service costs the same, and often less, than visiting traditional brick-and-mortar jewelry stores.

Terry O’Sullivan is a Private Jeweler in the Philadelphia area, with a team of appraisers,
GIA Graduate Gemologists, award winning designers and brokers who specialize in-
1) Buying and selling diamonds and fine colored gemstones
2) Designing, creating and restoring exquisite jewelry
3) Appraising jewelry and personal property

Our GIA Graduate Gemologists have the expertise and state-of-the-art laboratory equipment to identify, grade and value your treasures. GRI has the resources to fulfill all of your jewelry and gemstone desires through our contacts across the globe, and our team of talented goldsmiths and jewelers.

Step into the world of GRI, a completely unique one-on-one experience in jewelry shopping.
We work hard to educate, guide and thrill our clients, and we believe in a comfortable, low pressure shopping environment! Your complete satisfaction is our only policy.

Contact us to see how we can best serve you.

The GRI Promise

Care & Dedicated Service:
Clients are welcome to bring their GRI jewelry to our office at any time for inspection and routine cleaning.
*Complimentary services that GRI provides as part of our dedication to our customers include: one complimentary sizing , engraving, and tightening gems. Other services available at additional cost.

Alternatively, you can have your jewelry serviced by mailing it to our office at:
115 E. Glenside Avenue
Suite 6
Glenside, PA 19038

Mail your package via the United States Postal Service (USPS) Certified Mail, Insured, Return Receipt Requested
*Note: Complimentary services do not include shipping or insurance costs.

Service Integrity
Any work performed by an outside jeweler may compromise the integrity of the piece, thus, no future work by GRI can be “guaranteed" after outside work has been performed.

The People at Gri
Terry O’Sullivan

Terry’s love for jewelry began at a young age and it grew deeper, stronger and even vivid as he worked his way up in the industry. Terry has over 45 years of experience in the jewelry industry. He is a GIA Graduate Gemologist and Certified Bench Jeweler. Since 2000 Terry has been involved in doing private jewelry work, appraisals and finer jewelry work for high-end jewelers. Working with various sectors of the industry he experienced the many facets of the industry up-close and the skilled craft of the cutters, polishers, designers, craftsmen and brands. Terry makes frequent trips to New York to the Diamond District. He has traveled the world buying gemstones and creating priceless contacts. Terry knows the industry inside and out and knows how to get beautiful pieces at incredible prices. He is known for his honesty and sense of humor. He is constantly up to speed on the market and is able to give accurate and fair numbers for appraisals. Feel free to call and ask for him directly, he would love to answer your questions!

Lauren O’Sullivan-Walter

Lauren O’Sullivan-Walter has over 15 years of experience in the Jewelry Industry. She worked for a wholesale diamond company in NYC, but eventually moved home to work with her father. She is a GIA Graduate Gemologist, a member of National Association of Jewelry Appraisers (NAJA), and has completed Foundation in Gemology (FGA) at the Gemological Institute of Great Britain. Lauren moved to San Francisco in 2012 and runs her own company -Lauren O Inc.

Shawn O’Sullivan

Shawn O’Sullivan is Terry’s twin brother. Shawn is a GIA Graduate Gemologist and has been the Senior Gemstone Buyer and Product Development Leader for Jewelry Television (JTV), one of the world’s largest buyers and sellers of gems and jewelry. He travels the world in search of the best buys for quality gems. Shawn, like Terry, has countlessgreat stories of his adventures traveling the world and buying gemstones and jewelry.

ALlia dhody

Allia Dhody is a GIA Graduate Gemologist and a native of Philadelphia. She honed her expertise in appraisal working at Freeman’s Auction House in Philadelphia as an associate specialist. The years of cataloguing and appraising gave her a special appreciation for older and estate pieces not often found in the retail market. Before working at Freeman’s Allia worked at boutique jewelry stores in the Main Line and Chestnut Hill.