diff --git a/src/JSONValueNode.js b/src/JSONValueNode.js
index 7a8d616..1f9ed60 100644
--- a/src/JSONValueNode.js
+++ b/src/JSONValueNode.js
@@ -46,8 +46,8 @@ export default class JSONValueNode extends React.Component {
         </label>
         <span style={{
           color: this.props.theme.base0B,
-          ...this.props.styles.getValueStyle('String', true)
-        }}>"{this.props.valueRenderer(this.props.valueGetter(this.props.value))}"</span>
+          ...this.props.styles.getValueStyle(this.props.nodeType, true)
+        }}>{this.props.valueRenderer(this.props.valueGetter(this.props.value))}</span>
       </li>
     );
   }
diff --git a/src/grab-node.js b/src/grab-node.js
index 9bc530b..d75e14b 100644
--- a/src/grab-node.js
+++ b/src/grab-node.js
@@ -47,7 +47,7 @@ export default function({
     case 'Iterable':
       return <JSONIterableNode {...nestedNodeProps} />;
     case 'String':
-      return <JSONValueNode {...simpleNodeProps} />;
+      return <JSONValueNode {...simpleNodeProps} valueGetter={raw => `"${raw}"`} />;
     case 'Number':
       return <JSONValueNode {...simpleNodeProps} />;
     case 'Boolean':
@@ -55,9 +55,9 @@ export default function({
     case 'Date':
       return <JSONValueNode {...simpleNodeProps} valueGetter={raw => raw.toISOString()} />;
     case 'Null':
-      return <JSONValueNode {...simpleNodeProps} valueGetter={() => null} />;
+      return <JSONValueNode {...simpleNodeProps} valueGetter={() => 'null'} />;
     case 'Undefined':
-      return <JSONValueNode {...simpleNodeProps} valueGetter={() => undefined} />;
+      return <JSONValueNode {...simpleNodeProps} valueGetter={() => 'undefined'} />;
     case 'Function':
       return <JSONValueNode {...simpleNodeProps} valueGetter={raw => raw.toString()} />;
     default: