Contact Us

Please do not hesitate to contact us regarding any gemological and jewelry questions you might have. Our hours are by appointment. Evening and weekend appointments are also available to fit your busy schedule.

We are located in suburban Philadelphia, just minutes from major highways and one block from the train station. Our office is nestled in the heart of Glenside, PA in a 19th century building rich with old world charm and a warm, relaxed atmosphere!

For purchases, please call to speak with one of our experts. We would love to personally walk you through such an exciting and important purchase. We are more than happy to send you additional photos and information of any items of interest. We look forward to introducing you to the value GRI can provide!

215-938-7252

Terry O’Sullivan: terry@gemoresources.com
Shawn O’Sullivan: shawn@gemologicalresources.com
Allia Dhody: allia@gemoresources.com

VISIT US

115 E. Glenside Avenue, Suite 6
Glenside, PA 19038
Phone: 215-938-7252
Fax: 215-885-7352
Private office – Hours by appointment

2024 Divisadero Street, Suite 2
San Francisco, CA 94115
Phone: 215-806-1573
Website: http://www.laurenojewels.com
Private office – Hours by appointment

View Testimonial
Gene S. (Atlanta, GA)
BREATHTAKING!
This ring has exceeded all my expectations and I know my wife is going to love it! It is truly an heirloom that will... Read More
Vivat V. (Sathorn, Bangkok)
THANK YOU
It was likewise a pleasure to meet with you and we would like to thank you and your father for doing so many things... Read More
Melissa B. (Glenside, PA)
A DREAM COME TRUE!
Glad you guys made it happen - so perfectly too. We are so so so pleased and happy about our experience with you guys.... Read More
Sandra W. (West Chester, PA)
THANK YOU!
I picked up my ring and anklet late this morning. Both are perfect!!! I am sooooooo looking forward to wearing them and having them... Read More
Gregory F. (New York, NY)
THE BEST!
GRI is the best! I purchased a magnificent engagement ring for my fiancee, and she absolutely loves it. Terry educated me throughout the process... Read More
Samir T. (Jersey City, NJ)
GREAT CUSTOMER SERVICE!
In 2014, I was looking at getting a necklace for my wife for our 5th wedding anniversary and had reached out to Nirali at... Read More
Krystal J. (Langhorne, PA)
BEAUTIFUL!
The rings are beautiful and stunning. I find myself constantly looking at it and it just makes me smile, and thinking how lucky I... Read More
Patrick N. (Wayne, PA)
HIGHLY RECOMMENDED
I was referred to Terry and his fantastic team at Gemological Resources to find the perfect engagement ring. From start to finish they walked... Read More
Judy R. (Furlong, PA)
VERY TRUSTWORTHY
Once I found Gemological Resources several years ago I will not shop anywhere else for jewelry. (Not the Caribbean, not On-Line, not anywhere ...).... Read More
April T. (Las Vegas, NV)
ABSOLUTELY GORGEOUS!
Well my mega ring is here! It is absolutely gorgeous!!!!... Read More
Susan C. (Newark, DE)
EXTREMELY SUPPORTIVE
I just wanted to thank you for the time, effort, patience and expertise you gave my son when he was choosing the engagement ring.... Read More