# Gem **Gems** are purchasable units within the Generos protocol, designed to be gifted among participants to facilitate and record acts of generosity. These digital tokens are represented by seven tiers: Ruby, Citrine, Topaz, Emerald, Aquamarine, Tanzanite, and Amethyst, each corresponding to different contribution amounts. When a Gem is gifted, it is added to the recipient's Vault, either through direct transfer or indirectly via the Vault Algorithm. This mechanism ensures every act of giving is recorded on-chain and becomes part of the regenerative cycle. The seven tiers establish a graduated structure for participation, allowing contributors to match their gift size to their intent. Gems function as the fundamental unit of economic participation in Generos. Each gift creates multiple layers of value: it fills Vaults toward cycling, it establishes or strengthens Vault Connections, and 80% of each Gem's purchase price is transferred to the Redemption Treasury as USDC, directly backing Gencoin's value. When purchased and gifted, Gems translate generosity into durable economic power for both giver and receiver. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.generos.io/concepts/gem.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.