We are dedicated to providing the highest quality gemstones at the most affordable price; therefore we staff two graduate gemologists and Northern Illinois' only certified gemological appraiser to ensure the best quality service. Gruno's has the only complete, state-of-the-art, AGS certified gem lab in the area, so that we are able to carefully examine all diamonds, colored gems and jewelry that we provide to our customers. Certificates accompany each diamond from either the Gemological Institute of America or the American Gem Society, the most respected gemological institutes in the world.
Bring in any jewelry item purchased at Gruno's or elsewhere, and our certified gemologists will provide you with:
Call us now for pricing on jewelry appraisals and gem identifications or to make an appointment to meet a gemologist.