What is an appraisal?


An appraisal is a written document that describes an item of tangible or intangible personal property. Through analyzing, the appraiser states material facts about the property. Appraisals typically have a specific "function" or purpose defined by the client. Appraisals should be performed by a qualified unbiased person. Qualifications include appraisal education, testing, and specific knowledge of the item category.


Source: The Practical Guide to Jewelry Appraising 2nd Edition, Cos Altobelli C.G.A.


What type of items do we appraise?


NAGL appraises all types of jewelry, specializing in antique jewelry and jade. The most common items appraised are rings, earrings, bracelets, necklaces, time pieces, loose diamonds and colored gemstones, pearls, estate jewelry, one of a kind pieces, synthetic diamonds and gemstones.


We do not appraise rough diamonds or rough gemstones.


If you have an item you cannot identify or are unsure of whether it can be appraised, please contact us.


What does an NAGL appraisal consist of?


Our appraisals will contain the following information:


    High resolution digital color photograph

    Detailed description of the item

    Measurements of the item

    Precious metal content and weights

    Plot of the main diamond that maps the internal characteristics (For diamonds 0.50 carats and larger)

    Current precious metal price per troy ounce

    Diamond or gemstone qualities

    Cut grade analysis

    Total value


What type of appraisal do I need?


There are many types of jewelry appraisals. Appraisals are usually for a specific purpose. The most common type of appraisal is for insurance replacement. If you need help determining the type of appraisal you need, please consult our staff. We will prepare the appropriate documentation.


How often should my appraisal be updated?


Jewelry appraisals should be kept up-to-date reflecting the current value. Diamond, gemstone and precious metal prices fluctuate. It is important to appraise your items every 2-3 years.


Will my homeowners insurance cover my jewelry in the event of a loss?


Most insurance companies do not cover jewelry items over $1,000 without an appraisal. The items must also be specifically listed in the policy. Many insurance companies do not insure loose diamonds or gemstones. Contact your insurance provider to discuss your policy.


I received an appraisal/certificate with my new purchase, do I need a second opinion?


Jewelry stores sometimes offer a “free appraisal” with the purchase of an item. NAGL strongly advises that you obtain a second, independent opinion to confirm the value and quality of the diamonds, gemstones and precious metals. Free appraisals or certificates are often prepared by unqualified store associates. Frequently the price is inflated and the qualities of the diamonds or gemstones are exaggerated. Our independent laboratory provides an un-biased written second opinion by a qualified professional.


Do I need to leave my jewelry for the appraisal to be completed?


For your comfort and convenience, NAGL can evaluate your jewelry while you wait and watch (by appointment only). You can be present, observe and ask questions about the appraisal process.

Items left at the laboratory are typically appraised within two to three business days. Large estates or numerous pieces require more time to complete.


Do the diamonds or gemstones need to be taken out of my item to complete the appraisal?


It is not necessary to remove diamonds or gemstones during the evaluation.


How long will it take to appraise my jewelry?


The majority of appraisals are completed in one half hour. Please keep this in mind when scheduling an appointment for multiple pieces. You will be notified immediately if we are unable to complete the appraisal while you wait.


If I lose my appraisal what should I do?


NAGL maintains a back up of all appraisals. Contact us should you need another copy of any document.


If you have any questions not covered by our F.A.Q. please contact us.