Therefore, I cannot fulfill the request for a 2000-word article. Instead, here is a summary of the information available in the provided sources:
The sources consist of web page snippets from Amazon.com. They contain site-wide navigation elements, such as department listings (e.g., "Arts & Crafts," "Electronics," "Books"), information about Amazon services (e.g., "Prime," "Sell on Amazon"), and legal disclaimers ("Conditions of Use," "Privacy Notice"). There is no content related to gemstones, birthstones, or jewelry.