GET (/users/xuid({xuid})/achievements/{scid}/{achievementid})

{
    "achievement":
    {
        "id":"3",
        "serviceConfigId":"b5dd9daf-0000-0000-0000-000000000000",
        "name":"Default NameString for Microsoft Achievements Sample Achievement 3",
        "titleAssociations":
        [{
                "name":"Microsoft Achievements Sample",
                "id":3051199919,
                "version":"abc"
        }],
        "progressState":"Achieved",
        "progression":
        {
                "requirements":null,
                "timeUnlocked":"2013-01-17T03:19:00.3087016Z",
        },
        "mediaAssets":
        [{
                "name":"Icon Name",
                "type":"Icon",
                "url":"http://www.xbox.com"
        }],
        "platform":"D",
        "isSecret":true,
        "description":"Default DescriptionString for Microsoft Achievements Sample Achievement 3",
        "lockedDescription":"Default UnachievedString for Microsoft Achievements Sample Achievement 3",
        "productId":"12345678-1234-1234-1234-123456789012",
        "achievementType":"Challenge",
        "participationType":"Individual",
        "timeWindow":
        {
                "startDate":"2013-02-01T00:00:00Z",
                "endDate":"2100-07-01T00:00:00Z"
        },
        "rewards":
        [{
                "name":null,
                "description":null,
                "value":"10",
                "type":"Gamerscore",
                "valueType":"Int"
        },
        {
                "name":"Default Name for InAppReward for Microsoft Achievements Sample Achievement 3",
                "description":"Default Description for InAppReward for Microsoft Achievements Sample Achievement 3",
                "value":"1",
                "type":"InApp",
                "valueType":"String"
        }],
        "estimatedTime":"06:12:14",
        "deeplink":"aWFtYWRlZXBsaW5r",
        "isRevoked":false
    }
}