# Diamond Authority > Jewelry store staffed by individuals with extensive experience in the local market. Atmosphere centers on expertise and knowledge, creating a confident shopping environment. The focus lies on high-quality diamonds and personalized service. Source: https://www.atly.com/location/DiamondAuthority - Address: 10260 SW Greenburg Rd Suite 400 4th Floor, Portland, Oregon, United States - Phone: +19714584001 - Website: https://thediamondauthority.com/ ## What people say - "I found the best diamonds at this Jewelry Store for the best price." ## Good to know - Most jewelry shops offer custom design services. - Expect a range of price points, from affordable to luxury items. - Sales tax in Oregon is 0%, making purchases more affordable. - Parking can be limited in downtown areas; consider public transport. - Some shops may require appointments for personalized services. ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.