Our assay services are the most accurate in the industry.

From the most precise form of assay, the fire assay to our unique, non-destruct XRF assay, we have an analytical service to fit your needs.

We can check the purity of a piece of jewelry for a buyer as easily as we can detect every element in a sample of ore.

Our lab is an assayer for the Jewelers Vigilance Committee as well as helping the quality assurance departments of the major jewelry vendors verify the purity of their inventory.

If you need any information or have any questions, you can contact us at refining@dillongage.com.