Where is Giallo Siena marble quarried?
Sovicille, in the province of Siena, Tuscany, Italy.
The stone itself

Giallo Siena, Giallo di Siena, Giallo Siena Unito, Siena Gold, Golden Siena, Siena Giallo, Siena Yellow, Amarillo Siena and Giallo Sienna. Write any one of them on the order and it is the same block. The international reference code is ICITMA00793.
| Name | Status | Source |
|---|---|---|
| Giallo Siena, Giallo di Siena, Giallo Siena Unito | The primary names | Published stone sheet |
| Siena Gold, Golden Siena, Siena Giallo, Siena Yellow, Amarillo Siena, Giallo Sienna | Commercial name lists | Trade name lists |
| ICITMA00793 | International reference code (ICODE) | Published stone sheet |
| Siena Brocatello / Broccatello di Siena | Recorded, and NOT used as an interchangeable label | Published stone sheet |
The name travels. Several supplier listings carry Broccatello di Siena as an alias, and Broccatello is a breccia that this site catalogues as a separate variant — so the name is recorded on this page and not used as though it meant the same block.
What these figures are, and what they are not One name on an order does not pin one block. Giallo Siena marble varies within a block and between blocks, and the batch reference does the work the name cannot.
Sovicille, in the province of Siena, Tuscany, Italy.
Natural.
This answer sits on the The stone itself page, with the rest of the questions about it.
The stoneA thickness, a format, a finish, a quantity and a destination will get you a quotation for Giallo Siena marble.
What other names does Giallo Siena marble go by?