How accurate are these weight estimates?

Estimates are calculated using deterministic formulas based on specific gravity and shape-specific correction factors provided by the `get_gemstone_specifications` tool.

Which gemstone types are supported?

The tool supports diamond, ruby, sapphire, emerald, amethyst, topaz, garnet, opal, and pearl.

Can I calculate the price of a stone?

Yes, you can use the `calculate_gemstone_value` tool by providing the estimated carat weight and the current market rate per carat.

Gemstone Weight Calculator MCP Connector for Claude

A+

Estimate gemstone carat weight and market value using physical dimensions.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides precise tools for gemstone professionals and enthusiasts to calculate mass and value. By using the estimate_carat_weight tool, you can determine the carat weight of a stone by providing its shape, length, width, depth, and material type. The server also includes calculate_gemstone_value to estimate market price and get_gemstone_specifications to retrieve specific gravity and shape correction factors.

gemstonecaratweightdiamondvaluation

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_1RgUBG4wW8r4dIyYFxmm45vP85JUrVK6JE4sxWDL/mcp

② Claude Code (terminal)

claude mcp add --transport http gemstone-weight-calculator https://edge.vinkius.com/vk_preview_1RgUBG4wW8r4dIyYFxmm45vP85JUrVK6JE4sxWDL/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "gemstone-weight-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_1RgUBG4wW8r4dIyYFxmm45vP85JUrVK6JE4sxWDL/mcp"
    }
  }
}

Get full access on Vinkius

The preview token above works for testing. Powered by Vinkius.