To retrieve a deal stage, the following permissions are required.

Deal permission: the user should have permission to manage deals.
Pipeline-specific permission: the user should have permission to manage the pipeline that the stage belongs to.

{
  "dealStage": {
    "cardRegion1": "title",
    "cardRegion2": "next-action",
    "cardRegion3": "show-avatar",
    "cardRegion4": "contact-fullname-orgname",
    "cardRegion5": "value",
    "cdate": "2017-01-20T09:27:32-06:00",
    "color": "C481DF",
    "dealOrder": "score DESC",
    "group": "1",
    "id": "1",
    "links": {
      "group": "/api/3/dealStages/1/group"
    },
    "order": "1",
    "title": "Stage 1",
    "udate": "2017-03-02T11:41:01-06:00",
    "width": "280"
  }
}