diff --git a/README.md b/README.md
index 972666c..6eb3fde 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,15 @@ const id = 55587 || "55587";
 createRailsId(id, "Model") // -> gid://qeepsake-rails/Model/55587
 ```
 
+### Tetsing for Extracted Rails ID
+
+```js
+import { isExtractedRailsId } from '@qeepsake/rails-guid';
+
+isExtractedRailsId("55587") // => true
+isExtractedRailsId("gid://qeepsake-rails/Model/55587") // => false
+```
+
 ## License
 
 MIT © [lukebrandonfarrell](https://github.com/lukebrandonfarrell)
diff --git a/lib/extract-rails-id.js b/lib/extract-rails-id.js
index bc435a3..ac98cee 100644
--- a/lib/extract-rails-id.js
+++ b/lib/extract-rails-id.js
@@ -1,4 +1,8 @@
+import { isExtractedRailsId } from './is-extracted-rails-id';
 export function extractRailsId(gid, stripTimestamp = false) {
+    // Checks if ID has already been extracted, if so, return it
+    if (gid && isExtractedRailsId(gid))
+        return gid;
     if (typeof gid === 'string' && (gid === null || gid === void 0 ? void 0 : gid.indexOf('/')) != -1) {
         const gidComponents = gid.split('/');
         let extractedId = gidComponents[gidComponents.length - 1];
diff --git a/lib/index.d.ts b/lib/index.d.ts
index 15f59bd..3b11d69 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -1,2 +1,3 @@
 export { extractRailsId } from './extract-rails-id';
 export { createRailsId } from './create-rails-id';
+export { isExtractedRailsId } from './is-extracted-rails-id';
diff --git a/lib/index.js b/lib/index.js
index 15f59bd..3b11d69 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,2 +1,3 @@
 export { extractRailsId } from './extract-rails-id';
 export { createRailsId } from './create-rails-id';
+export { isExtractedRailsId } from './is-extracted-rails-id';
diff --git a/lib/index.js.map b/lib/index.js.map
index f2a6e25..57de660 100644
--- a/lib/index.js.map
+++ b/lib/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sources":["../src/extract-rails-id.ts","../src/create-rails-id.ts"],"sourcesContent":["/**\n * Extract rails ID\n *\n * If the ID is passed in the format of gid://qeepsake-rails/JournalEntry/55587\n * then it will be returned 55587\n *\n * @param gid - gid://qeepsake-rails/Model/55587\n * @param stripTimestamp - whether to strip the timestamp from the ID (i.e. %2C2022-09-26+13%3A08%3A27+UTC)\n *\n * @returns 55587\n */\n export function extractRailsId(gid: string, stripTimestamp?: boolean): string;\n export function extractRailsId(gid?: string | null, stripTimestamp?: boolean): string | null;\n export function extractRailsId(gid?: string | null, stripTimestamp = false): string | null {\n  if (typeof gid === 'string' && gid?.indexOf('/') != -1) {\n    const gidComponents = gid.split('/')\n    let extractedId = gidComponents[gidComponents.length - 1]\n\n     // Strips the timestamp (%2C2022-09-26+13%3A08%3A27+UTC)) from the ID \n     if(stripTimestamp && extractedId?.includes('%')) {\n      extractedId = extractedId.split('%')[0];\n    }\n\n    if (extractedId) {\n      return extractedId\n    }\n  }\n\n  return null\n}\n","/**\n * Creates a rails id\n *\n * If the ID is passed in the format of 55587, then it will be returned\n * gid://qeepsake-rails/JournalEntry/55587\n *\n * @param id - 55587\n * @param model - JournalEntry\n *\n * @returns gid://qeepsake-rails/Model/55587\n */\nexport function createRailsId(id: number | string, model: string): string {\n  return `gid://qeepsake-rails/${model}/${id}`\n}\n"],"names":["extractRailsId","gid","stripTimestamp","indexOf","gidComponents","split","extractedId","length","includes","createRailsId","id","model"],"mappings":"SAaiBA,eAAeC,KAAqBC;MAAAA;AAAAA,IAAAA,iBAAiB;;;AACpE,MAAI,OAAOD,GAAP,KAAe,QAAf,IAA2B,CAAAA,GAAG,SAAH,IAAAA,GAAG,WAAH,YAAAA,GAAG,CAAEE,OAAL,CAAa,GAAb,MAAqB,CAAC,CAArD,EAAwD;AAAA;;AACtD,QAAMC,aAAa,GAAGH,GAAG,CAACI,KAAJ,CAAU,GAAV,CAAtB;AACA,QAAIC,WAAW,GAAGF,aAAa,CAACA,aAAa,CAACG,MAAd,GAAuB,CAAxB,CAA/B;;AAGC,QAAGL,cAAc,oBAAII,WAAJ,yCAAI,aAAaE,QAAb,CAAsB,GAAtB,CAArB,EAAiD;AAChDF,MAAAA,WAAW,GAAGA,WAAW,CAACD,KAAZ,CAAkB,GAAlB,EAAuB,CAAvB,CAAd;AACD;;AAED,QAAIC,WAAJ,EAAiB;AACf,aAAOA,WAAP;AACD;AACF;;AAED,SAAO,IAAP;AACD;;SClBeG,cAAcC,IAAqBC;AACjD,mCAA+BA,KAA/B,SAAwCD,EAAxC;AACD;;;;;"}
\ No newline at end of file
+{"version":3,"file":"index.js","sources":["../src/is-extracted-rails-id.ts","../src/extract-rails-id.ts","../src/create-rails-id.ts"],"sourcesContent":["\n/**\n * Checks to see if the given string is a valid extracted Rails ID\n * i.e. 55587 and not gid://qeepsake-rails/JournalEntry/55587\n * \n * @param id - rails ID\n * @returns if ID is extracted rails ID\n */\nexport function isExtractedRailsId(id: string): boolean {\n  return !id?.startsWith('gid://');\n}","import { isExtractedRailsId } from \"./is-extracted-rails-id\"\n\n/**\n * Extract rails ID\n *\n * If the ID is passed in the format of gid://qeepsake-rails/JournalEntry/55587\n * then it will be returned 55587\n *\n * @param gid - gid://qeepsake-rails/Model/55587\n * @param stripTimestamp - whether to strip the timestamp from the ID (i.e. %2C2022-09-26+13%3A08%3A27+UTC)\n *\n * @returns 55587\n */\nexport function extractRailsId(gid: string, stripTimestamp?: boolean): string\nexport function extractRailsId(\n  gid?: string | null,\n  stripTimestamp?: boolean,\n): string | null\nexport function extractRailsId(\n  gid?: string | null,\n  stripTimestamp = false,\n): string | null {\n  // Checks if ID has already been extracted, if so, return it\n  if(gid && isExtractedRailsId(gid)) {\n    return gid\n  }\n\n  if (typeof gid === 'string' && gid?.indexOf('/') != -1) {\n    const gidComponents = gid.split('/')\n    let extractedId = gidComponents[gidComponents.length - 1]\n\n    // Strips the timestamp (%2C2022-09-26+13%3A08%3A27+UTC)) from the ID\n    if (stripTimestamp && extractedId?.includes('%')) {\n      extractedId = extractedId.split('%')[0]\n    }\n\n    if (extractedId) {\n      return extractedId\n    }\n  }\n\n  return null\n}\n","/**\n * Creates a rails id\n *\n * If the ID is passed in the format of 55587, then it will be returned\n * gid://qeepsake-rails/JournalEntry/55587\n *\n * @param id - 55587\n * @param model - JournalEntry\n *\n * @returns gid://qeepsake-rails/Model/55587\n */\nexport function createRailsId(id: number | string, model: string): string {\n  return `gid://qeepsake-rails/${model}/${id}`\n}\n"],"names":["isExtractedRailsId","id","startsWith","extractRailsId","gid","stripTimestamp","indexOf","gidComponents","split","extractedId","length","includes","createRailsId","model"],"mappings":"SAQgBA,mBAAmBC;AACjC,SAAO,EAACA,EAAD,aAACA,EAAD,eAACA,EAAE,CAAEC,UAAJ,CAAe,QAAf,CAAD,CAAP;AACD;;SCQeC,eACdC,KACAC;MAAAA;AAAAA,IAAAA,iBAAiB;;;AAGjB,MAAGD,GAAG,IAAIJ,kBAAkB,CAACI,GAAD,CAA5B,EAAmC;AACjC,WAAOA,GAAP;AACD;;AAED,MAAI,OAAOA,GAAP,KAAe,QAAf,IAA2B,CAAAA,GAAG,SAAH,IAAAA,GAAG,WAAH,YAAAA,GAAG,CAAEE,OAAL,CAAa,GAAb,MAAqB,CAAC,CAArD,EAAwD;AAAA;;AACtD,QAAMC,aAAa,GAAGH,GAAG,CAACI,KAAJ,CAAU,GAAV,CAAtB;AACA,QAAIC,WAAW,GAAGF,aAAa,CAACA,aAAa,CAACG,MAAd,GAAuB,CAAxB,CAA/B;;AAGA,QAAIL,cAAc,oBAAII,WAAJ,yCAAI,aAAaE,QAAb,CAAsB,GAAtB,CAAtB,EAAkD;AAChDF,MAAAA,WAAW,GAAGA,WAAW,CAACD,KAAZ,CAAkB,GAAlB,EAAuB,CAAvB,CAAd;AACD;;AAED,QAAIC,WAAJ,EAAiB;AACf,aAAOA,WAAP;AACD;AACF;;AAED,SAAO,IAAP;AACD;;SC/BeG,cAAcX,IAAqBY;AACjD,mCAA+BA,KAA/B,SAAwCZ,EAAxC;AACD;;;;;;"}
\ No newline at end of file
diff --git a/lib/index.modern.js b/lib/index.modern.js
index 0d0f004..9ca83de 100644
--- a/lib/index.modern.js
+++ b/lib/index.modern.js
@@ -1,8 +1,16 @@
+function isExtractedRailsId(id) {
+  return !(id !== null && id !== void 0 && id.startsWith('gid://'));
+}
+
 function extractRailsId(gid, stripTimestamp) {
   if (stripTimestamp === void 0) {
     stripTimestamp = false;
   }
 
+  if (gid && isExtractedRailsId(gid)) {
+    return gid;
+  }
+
   if (typeof gid === 'string' && (gid === null || gid === void 0 ? void 0 : gid.indexOf('/')) != -1) {
     var _extractedId;
 
@@ -25,5 +33,5 @@ function createRailsId(id, model) {
   return "gid://qeepsake-rails/" + model + "/" + id;
 }
 
-export { createRailsId, extractRailsId };
+export { createRailsId, extractRailsId, isExtractedRailsId };
 //# sourceMappingURL=index.modern.js.map
diff --git a/lib/index.modern.js.map b/lib/index.modern.js.map
index de8b8a8..84cb0ba 100644
--- a/lib/index.modern.js.map
+++ b/lib/index.modern.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.modern.js","sources":["../src/extract-rails-id.ts","../src/create-rails-id.ts"],"sourcesContent":["/**\n * Extract rails ID\n *\n * If the ID is passed in the format of gid://qeepsake-rails/JournalEntry/55587\n * then it will be returned 55587\n *\n * @param gid - gid://qeepsake-rails/Model/55587\n * @param stripTimestamp - whether to strip the timestamp from the ID (i.e. %2C2022-09-26+13%3A08%3A27+UTC)\n *\n * @returns 55587\n */\n export function extractRailsId(gid: string, stripTimestamp?: boolean): string;\n export function extractRailsId(gid?: string | null, stripTimestamp?: boolean): string | null;\n export function extractRailsId(gid?: string | null, stripTimestamp = false): string | null {\n  if (typeof gid === 'string' && gid?.indexOf('/') != -1) {\n    const gidComponents = gid.split('/')\n    let extractedId = gidComponents[gidComponents.length - 1]\n\n     // Strips the timestamp (%2C2022-09-26+13%3A08%3A27+UTC)) from the ID \n     if(stripTimestamp && extractedId?.includes('%')) {\n      extractedId = extractedId.split('%')[0];\n    }\n\n    if (extractedId) {\n      return extractedId\n    }\n  }\n\n  return null\n}\n","/**\n * Creates a rails id\n *\n * If the ID is passed in the format of 55587, then it will be returned\n * gid://qeepsake-rails/JournalEntry/55587\n *\n * @param id - 55587\n * @param model - JournalEntry\n *\n * @returns gid://qeepsake-rails/Model/55587\n */\nexport function createRailsId(id: number | string, model: string): string {\n  return `gid://qeepsake-rails/${model}/${id}`\n}\n"],"names":["extractRailsId","gid","stripTimestamp","indexOf","gidComponents","split","extractedId","length","includes","createRailsId","id","model"],"mappings":"SAaiBA,eAAeC,KAAqBC;MAAAA;AAAAA,IAAAA,iBAAiB;;;AACpE,MAAI,OAAOD,GAAP,KAAe,QAAf,IAA2B,CAAAA,GAAG,SAAH,IAAAA,GAAG,WAAH,YAAAA,GAAG,CAAEE,OAAL,CAAa,GAAb,MAAqB,CAAC,CAArD,EAAwD;AAAA;;AACtD,QAAMC,aAAa,GAAGH,GAAG,CAACI,KAAJ,CAAU,GAAV,CAAtB;AACA,QAAIC,WAAW,GAAGF,aAAa,CAACA,aAAa,CAACG,MAAd,GAAuB,CAAxB,CAA/B;;AAGC,QAAGL,cAAc,oBAAII,WAAJ,yCAAI,aAAaE,QAAb,CAAsB,GAAtB,CAArB,EAAiD;AAChDF,MAAAA,WAAW,GAAGA,WAAW,CAACD,KAAZ,CAAkB,GAAlB,EAAuB,CAAvB,CAAd;AACD;;AAED,QAAIC,WAAJ,EAAiB;AACf,aAAOA,WAAP;AACD;AACF;;AAED,SAAO,IAAP;AACD;;SClBeG,cAAcC,IAAqBC;AACjD,mCAA+BA,KAA/B,SAAwCD,EAAxC;AACD;;;;"}
\ No newline at end of file
+{"version":3,"file":"index.modern.js","sources":["../src/is-extracted-rails-id.ts","../src/extract-rails-id.ts","../src/create-rails-id.ts"],"sourcesContent":["\n/**\n * Checks to see if the given string is a valid extracted Rails ID\n * i.e. 55587 and not gid://qeepsake-rails/JournalEntry/55587\n * \n * @param id - rails ID\n * @returns if ID is extracted rails ID\n */\nexport function isExtractedRailsId(id: string): boolean {\n  return !id?.startsWith('gid://');\n}","import { isExtractedRailsId } from \"./is-extracted-rails-id\"\n\n/**\n * Extract rails ID\n *\n * If the ID is passed in the format of gid://qeepsake-rails/JournalEntry/55587\n * then it will be returned 55587\n *\n * @param gid - gid://qeepsake-rails/Model/55587\n * @param stripTimestamp - whether to strip the timestamp from the ID (i.e. %2C2022-09-26+13%3A08%3A27+UTC)\n *\n * @returns 55587\n */\nexport function extractRailsId(gid: string, stripTimestamp?: boolean): string\nexport function extractRailsId(\n  gid?: string | null,\n  stripTimestamp?: boolean,\n): string | null\nexport function extractRailsId(\n  gid?: string | null,\n  stripTimestamp = false,\n): string | null {\n  // Checks if ID has already been extracted, if so, return it\n  if(gid && isExtractedRailsId(gid)) {\n    return gid\n  }\n\n  if (typeof gid === 'string' && gid?.indexOf('/') != -1) {\n    const gidComponents = gid.split('/')\n    let extractedId = gidComponents[gidComponents.length - 1]\n\n    // Strips the timestamp (%2C2022-09-26+13%3A08%3A27+UTC)) from the ID\n    if (stripTimestamp && extractedId?.includes('%')) {\n      extractedId = extractedId.split('%')[0]\n    }\n\n    if (extractedId) {\n      return extractedId\n    }\n  }\n\n  return null\n}\n","/**\n * Creates a rails id\n *\n * If the ID is passed in the format of 55587, then it will be returned\n * gid://qeepsake-rails/JournalEntry/55587\n *\n * @param id - 55587\n * @param model - JournalEntry\n *\n * @returns gid://qeepsake-rails/Model/55587\n */\nexport function createRailsId(id: number | string, model: string): string {\n  return `gid://qeepsake-rails/${model}/${id}`\n}\n"],"names":["isExtractedRailsId","id","startsWith","extractRailsId","gid","stripTimestamp","indexOf","gidComponents","split","extractedId","length","includes","createRailsId","model"],"mappings":"SAQgBA,mBAAmBC;AACjC,SAAO,EAACA,EAAD,aAACA,EAAD,eAACA,EAAE,CAAEC,UAAJ,CAAe,QAAf,CAAD,CAAP;AACD;;SCQeC,eACdC,KACAC;MAAAA;AAAAA,IAAAA,iBAAiB;;;AAGjB,MAAGD,GAAG,IAAIJ,kBAAkB,CAACI,GAAD,CAA5B,EAAmC;AACjC,WAAOA,GAAP;AACD;;AAED,MAAI,OAAOA,GAAP,KAAe,QAAf,IAA2B,CAAAA,GAAG,SAAH,IAAAA,GAAG,WAAH,YAAAA,GAAG,CAAEE,OAAL,CAAa,GAAb,MAAqB,CAAC,CAArD,EAAwD;AAAA;;AACtD,QAAMC,aAAa,GAAGH,GAAG,CAACI,KAAJ,CAAU,GAAV,CAAtB;AACA,QAAIC,WAAW,GAAGF,aAAa,CAACA,aAAa,CAACG,MAAd,GAAuB,CAAxB,CAA/B;;AAGA,QAAIL,cAAc,oBAAII,WAAJ,yCAAI,aAAaE,QAAb,CAAsB,GAAtB,CAAtB,EAAkD;AAChDF,MAAAA,WAAW,GAAGA,WAAW,CAACD,KAAZ,CAAkB,GAAlB,EAAuB,CAAvB,CAAd;AACD;;AAED,QAAIC,WAAJ,EAAiB;AACf,aAAOA,WAAP;AACD;AACF;;AAED,SAAO,IAAP;AACD;;SC/BeG,cAAcX,IAAqBY;AACjD,mCAA+BA,KAA/B,SAAwCZ,EAAxC;AACD;;;;"}
\ No newline at end of file
diff --git a/lib/is-extracted-rails-id.d.ts b/lib/is-extracted-rails-id.d.ts
new file mode 100644
index 0000000..98c9b8e
--- /dev/null
+++ b/lib/is-extracted-rails-id.d.ts
@@ -0,0 +1,8 @@
+/**
+ * Checks to see if the given string is a valid extracted Rails ID
+ * i.e. 55587 and not gid://qeepsake-rails/JournalEntry/55587
+ *
+ * @param id - rails ID
+ * @returns if ID is extracted rails ID
+ */
+export declare function isExtractedRailsId(id: string): boolean;
diff --git a/lib/is-extracted-rails-id.js b/lib/is-extracted-rails-id.js
new file mode 100644
index 0000000..466ba9e
--- /dev/null
+++ b/lib/is-extracted-rails-id.js
@@ -0,0 +1,14 @@
+/**
+ * Checks to see if the given string is a valid extracted Rails ID
+ * i.e. 55587 and not gid://qeepsake-rails/JournalEntry/55587
+ *
+ * @param id - rails ID
+ * @returns if ID is extracted rails ID
+ */
+export function isExtractedRailsId(id) {
+    if (typeof id === 'string') {
+        // Extracted IDs should NOT start with gid:// with no empty spaces
+        return !id.startsWith('gid://') && id.indexOf(' ') == -1;
+    }
+    return false;
+}
diff --git a/src/extract-rails-id.ts b/src/extract-rails-id.ts
index 6fe5cd0..44b1b36 100644
--- a/src/extract-rails-id.ts
+++ b/src/extract-rails-id.ts
@@ -1,3 +1,5 @@
+import { isExtractedRailsId } from './is-extracted-rails-id'
+
 /**
  * Extract rails ID
  *
@@ -18,6 +20,9 @@ export function extractRailsId(
   gid?: string | null,
   stripTimestamp = false,
 ): string | null {
+  // Checks if ID has already been extracted, if so, return it
+  if (gid && isExtractedRailsId(gid)) return gid
+
   if (typeof gid === 'string' && gid?.indexOf('/') != -1) {
     const gidComponents = gid.split('/')
     let extractedId = gidComponents[gidComponents.length - 1]
diff --git a/src/index.ts b/src/index.ts
index 891a675..14f7359 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,2 +1,3 @@
 export { extractRailsId } from './extract-rails-id'
 export { createRailsId } from './create-rails-id'
+export { isExtractedRailsId } from './is-extracted-rails-id'
diff --git a/src/is-extracted-rails-id.ts b/src/is-extracted-rails-id.ts
new file mode 100644
index 0000000..ff02d86
--- /dev/null
+++ b/src/is-extracted-rails-id.ts
@@ -0,0 +1,15 @@
+/**
+ * Checks to see if the given string is a valid extracted Rails ID
+ * i.e. 55587 and not gid://qeepsake-rails/JournalEntry/55587
+ *
+ * @param id - rails ID
+ * @returns if ID is extracted rails ID
+ */
+export function isExtractedRailsId(id: string): boolean {
+  if (typeof id === 'string') {
+    // Extracted IDs should NOT start with gid:// with no empty spaces
+    return !id.startsWith('gid://') && id.indexOf(' ') == -1
+  }
+
+  return false
+}
diff --git a/tests/is-extracted-rails-id.test.js b/tests/is-extracted-rails-id.test.js
new file mode 100644
index 0000000..0b12d00
--- /dev/null
+++ b/tests/is-extracted-rails-id.test.js
@@ -0,0 +1,9 @@
+const { isExtractedRailsId } = require('../src/is-extracted-rails-id');
+
+test('Test non-extracted Rails ID equals false', () => {
+  expect(isExtractedRailsId('gid://qeepsake-rails/MyModel/12345')).toBe(false);
+});
+
+test('Test extracted Rails ID equals true', () => {
+    expect(isExtractedRailsId('12345')).toBe(true);
+});
\ No newline at end of file