Visit a jeweler who sells amber or a professional appraiser for evaluation. The appraiser will charge a fee for the service, and provide you with a detailed report that assesses the value of your amber necklace.
How to clean amber necklace?
How to Clean Amber Necklace
Take-Two Blows with Warm Water: Prepare two blows having lukewarm water.
Drop Some Amount of Liquid Soap in One of the Blow: You can use jewelry cleaning solution…
Dip the Necklace into the Soapy Water: Now dip the amber necklace into the blow of warm soapy water.
Rinse the necklace into the clean water: After cleaning…