The value of amber is determined by many factors, including:

• the size of the stone,
• its proportions (thicker ones are usually more worth than flat ones),
• cohesion (ambers with a uniform internal structure are more valuable than the so-called plywood, i.e. layered ambers and from the so-called slag, i.e. contaminated amber),
• presence of inclusions (both their number, rarity, size and location in amber are important),
• the color and possible patterns are a very individual matter, but also affecting the valuation of amber,
• cut and its quality,
• finally, the type of binding is important: badly framed amber loses its value, and an interesting setting causes that we keep jewelery for future generations.