A.DeMello Gemological Laboratories
Our Process
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Office Hours: Mon - Fri 9AM - 5PM by Appointment Only.
Saturday, Sunday and after hours home appointments also available.
Appraisals can be performed while you watch. Fees are quoted before work is performed.
We Accept: Cash, Check, Visa, Master Card. Amex and Discover.
Please Schedule in Advance for Best Availability.

Please Call Boston 617 742-1630 NYC 212 974-2608 Cell 508 558-0277 for an appointment at any of our locations.


COVID-19 - NEW SAFE DRIVE UP SERVICE NOW AVAILABLE IN YOUR AREA: Our Travel Lab Appraisal Service is Available 9AM - 9PM 7 Days a week. All work is performed while you watch. Fees are quoted before work is performed.
We Accept: Cash, Check, Visa, Master Card. Amex and Discover.

Please Call  Boston  617 742-1630  NYC 212 974-2608  Cell 508 558-0277  for an appointment at any of our locations.



Helpfull Tips:

A. Preparing For Your Appraisal Appointment:

1. Cleaning Your Jewelry: Try to have your jewelry cleaned best possibal before your appointment to save time. A thorough cleaning can be done in our office more quickly if your jewelry is reasonably clean to start out with. A mixture of a mild household liquid soap detergent and water scrubing with a soft bristle toothbrush works best.

2. Grading Certificates: Please remember to bring your GIA, AGSL, or EGL Certificates for comparison. Although we do our own Independent Evaluation, Unlike a loose stone grading, most likely we will be evaluating you jewelry mounted and may need a depth measurement or diameter or actual weight to complete our evaluation. For this a loose grading cert. is helpfull.

3. Write down any questions or problems you may have had with your purchase or the jewelry being appraised so that you wont forget any major points of concern.


B. Your Appraisal Appointment:

1. Fees and Payment Arrangements: We discuss Fees and Payment with you before we appraise your jewelry to insure client satisfaction. For your convenience we accept: Cash, Check, Visa, MC, Amex and Discover.

2. Procedure & Consultation: We evaluate your jewelry while you wait and watch. We will explain each test and procedure as we perform them making it a fun enjoyable and educational experience. We Test, and Identify, Metals and Gemstones along with grading for: color, clarity, polish, proportion, as well as cut grade. We test for natural origin, including treatments. All tests and procedures are safe for your jewelry. Most clients comment on how well our work is done and how smooth it all goes.

Remember to tell us about any concerns you may have. Although we have many years of appraisal experience, every item of jewelry is unique and every client is serviced to meet their individual needs and circumstances.

3. Report Preparation: Results can be given both verbally, in print, or formatted to meet: Insurance, Estate, Tax, Equitable Distribution or Collateral Loan Purposes. All our appraisal work and appropriate Certificates are guaranteed for acceptance by: Insurance Companies, Banks and Attorneys and for All Legal Purposes.

4. Once you have received your paperwork, be sure and check that a copy has been received by the party requesting the appraisal. Many times a faxed or mailed copy was sent and assumed received. Be sure to check.


Selling Your Gold, Platinum and Diamond Jewelry To Us.

Occasionaly many of us aquire fine jewelry that no longer is of use to us. It may be jewelry inherrited from a grandmother, a great aunt, a past relationship or simmilar type circumstance.

For this we offer our clients a means of selling their jewelry in complete confidentiality without a conflict of interest with our appraisal services.

We would be happy to arrange a meeting with you to discuss our services in buying your old, damaged, or unwanted Gold Platinum  Diamond Jewelry and Watches.

Please contact us for details at Boston 617 742-1630 NYC 212 974-2608 Cell 508 558-0277


In Order To Satisfy Insurance Co Requirements: Diamond & Jewelry Appraisals Need To Be Updated Every 3 - 5 Years. Estate Appraisals Need Not Be Updated Unless Additional Actions Need To Be Taken Where Jewelry Items Need To Be Considered Such As: Divorce, Wills, Forced Sale, Establishing Fair Market Values for Estate Tax Payment, Net Worth or Investment. To update your Appraisal Please Email: Your Current Name, Address, Telephone Number and Email Address, Date of Last Appraisal and any New Address Changes. To Save Time You may Pay By Visa, Master Card Amex or Paypall. Please Call Boston 617 742-1630  NYC 212 974-2608  to make an appointment or Contact:ademello59@yahoo.comThank You. We will be contacting You Soon,


Arthur DeMello GG. (GIA)