Moissanite Tools
FITINY jewellery tools: density-corrected carat/mm, GIA grades, ISO 8653 ring sizes
Connect it
Settings → Connectors → Add custom connector
URL: https://mcp.fitiny.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://mcp.fitiny.com/mcp{
"mcpServers": {
"moissanite-tools": {
"url": "https://mcp.fitiny.com/mcp"
}
}
}claude mcp add --transport http moissanite-tools https://mcp.fitiny.com/mcp{
"servers": {
"moissanite-tools": {
"type": "http",
"url": "https://mcp.fitiny.com/mcp"
}
}
}6 tools, verified live
carat_to_mmDiameter in millimetres for a given carat weight. Round brilliant cut. Density-corrected per stone - a diamond chart is wrong for moissanite by ~9%.
mm_to_caratCarat weight for a given diameter in millimetres. Round brilliant cut.
grading_scaleGIA colour (D-K) or clarity (FL-SI) scale as used for moissanite, or published optical constants for moissanite / diamond / cubic zirconia.
ring_size_convertConvert a ring size between US, UK, EU (ISO 8653) and inner diameter in mm. A US 6 is a UK M, not a UK 6.
necklace_lengthWhere a necklace of a given length sits, with the trade name (choker, princess, matinee...).
stud_appearanceHow a round stud of a given stone diameter reads on the ear.
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