diff --git a/images_variants.go b/images_variants.go
index 8c5d011822f5..977ff6501424 100644
--- a/images_variants.go
+++ b/images_variants.go
@@ -37,7 +37,7 @@ type CreateImagesVariantParams struct {
 }
 
 type UpdateImagesVariantParams struct {
-	ID                     string
+	ID                     string                `json:"-"`
 	NeverRequireSignedURLs bool                  `json:"neverRequireSignedURLs,omitempty"`
 	Options                ImagesVariantsOptions `json:"options,omitempty"`
 }
@@ -94,7 +94,7 @@ func (api *API) GetImagesVariantDetails(ctx context.Context, rc *ResourceContain
 		return ImagesVariant{}, fmt.Errorf("%s: %w", errUnmarshalError, err)
 	}
 
-	return ImagesVariant{}, nil
+	return imagesVariantDetailResponse.Result.Variant, nil
 }
 
 // Specify variants that allow you to resize images for different use cases.
@@ -140,7 +140,7 @@ func (api *API) DeleteImagesVariant(ctx context.Context, rc *ResourceContainer,
 // Updating a variant purges the cache for all images associated with the variant.
 //
 // API Reference: https://developers.cloudflare.com/api/operations/cloudflare-images-variants-variant-details
-func (api *API) UpdateImagesVariant(ctx context.Context, rc *ResourceContainer, variantId string, params UpdateImagesVariantParams) (ImagesVariant, error) {
+func (api *API) UpdateImagesVariant(ctx context.Context, rc *ResourceContainer, params UpdateImagesVariantParams) (ImagesVariant, error) {
 	if rc.Identifier == "" {
 		return ImagesVariant{}, ErrMissingAccountID
 	}
diff --git a/images_variants_test.go b/images_variants_test.go
index 09a2678a265f..1a4a42a9c6f7 100644
--- a/images_variants_test.go
+++ b/images_variants_test.go
@@ -9,6 +9,10 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+const (
+	testImagesVariantID = "hero"
+)
+
 func TestImageVariants_ListVariants(t *testing.T) {
 	setup()
 	defer teardown()
@@ -45,25 +49,116 @@ func TestImageVariants_Delete(t *testing.T) {
 	defer teardown()
 
 	handler := func(w http.ResponseWriter, r *http.Request) {
-		assert.Equal(t, http.MethodGet, r.Method, "Expected method '%s', got %s", http.MethodGet, r.Method)
-
+		assert.Equal(t, http.MethodDelete, r.Method, "Expected method '%s', got %s", http.MethodDelete, r.Method)
 		w.Header().Set("content-type", "application/json")
-		fmt.Fprint(w, loadFixture("tunnel", "configuration"))
+		fmt.Fprint(w, `{
+			"success": true,
+			"errors": [],
+			"messages": [],
+			"result": {}
+		}`)
 	}
 
-	url := fmt.Sprintf("/account/%s/images/v1/variants/%s", testAccountID, "hero")
+	url := fmt.Sprintf("/accounts/%s/images/v1/variants/%s", testAccountID, testImagesVariantID)
 	mux.HandleFunc(url, handler)
 
-	err := client.DeleteImagesVariant(context.Background(), AccountIdentifier(testAccountID), "hero")
+	err := client.DeleteImagesVariant(context.Background(), AccountIdentifier(testAccountID), testImagesVariantID)
 	assert.NoError(t, err)
 }
 
 func TestImagesVariants_GetDetails(t *testing.T) {
+	setup()
+	defer teardown()
+
+	handler := func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, http.MethodGet, r.Method, "Expected method '%s', got %s", http.MethodGet, r.Method)
+		w.Header().Set("content-type", "application/json")
+		fmt.Fprint(w, loadFixture("images_variants", "single_full"))
+	}
+
+	url := fmt.Sprintf("/accounts/%s/images/v1/variants/%s", testAccountID, testImagesVariantID)
+	mux.HandleFunc(url, handler)
 
+	want := ImagesVariant{
+		ID:                     "hero",
+		NeverRequireSignedURLs: true,
+		Options: ImagesVariantsOptions{
+			Fit:      "scale-down",
+			Height:   768,
+			Width:    1366,
+			Metadata: "none",
+		},
+	}
+
+	got, err := client.GetImagesVariantDetails(context.Background(), AccountIdentifier(testAccountID), testImagesVariantID)
+	if assert.NoError(t, err) {
+		assert.Equal(t, want, got)
+	}
 }
 
 func TestImagesVariants_CreateVariant(t *testing.T) {
+	setup()
+	defer teardown()
+
+	handler := func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, http.MethodPost, r.Method, "Expected method '%s', got %s", http.MethodPost, r.Method)
+		w.Header().Set("content-type", "application/json")
+		fmt.Fprint(w, loadFixture("images_variants", "single_full"))
+	}
+
+	url := fmt.Sprintf("/accounts/%s/images/v1/variants", testAccountID)
+	mux.HandleFunc(url, handler)
+
+	want := ImagesVariant{
+		ID:                     "hero",
+		NeverRequireSignedURLs: true,
+		Options: ImagesVariantsOptions{
+			Fit:      "scale-down",
+			Height:   768,
+			Width:    1366,
+			Metadata: "none",
+		},
+	}
+
+	got, err := client.CreateImagesVariant(context.Background(), AccountIdentifier(testAccountID), CreateImagesVariantParams{
+		ImagesVariant: want,
+	})
+	if assert.NoError(t, err) {
+		assert.Equal(t, want, got)
+	}
 }
 
 func TestImagesVariants_UpdateVariant(t *testing.T) {
+	setup()
+	defer teardown()
+
+	handler := func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, http.MethodPatch, r.Method, "Expected method '%s', got %s", http.MethodPatch, r.Method)
+		w.Header().Set("content-type", "application/json")
+		fmt.Fprint(w, loadFixture("images_variants", "single_full"))
+	}
+
+	url := fmt.Sprintf("/accounts/%s/images/v1/variants/%s", testAccountID, testImagesVariantID)
+	mux.HandleFunc(url, handler)
+
+	want := ImagesVariant{
+		ID:                     "hero",
+		NeverRequireSignedURLs: true,
+		Options: ImagesVariantsOptions{
+			Fit:      "scale-down",
+			Height:   768,
+			Width:    1366,
+			Metadata: "none",
+		},
+	}
+
+	got, err := client.UpdateImagesVariant(context.Background(), AccountIdentifier(testAccountID), UpdateImagesVariantParams{
+		ID:                     want.ID,
+		NeverRequireSignedURLs: want.NeverRequireSignedURLs,
+		Options:                want.Options,
+	})
+
+	if assert.NoError(t, err) {
+		assert.Equal(t, want, got)
+	}
 }
diff --git a/testdata/fixtures/images_variants/single_full.json b/testdata/fixtures/images_variants/single_full.json
new file mode 100644
index 000000000000..f8bc039b5c81
--- /dev/null
+++ b/testdata/fixtures/images_variants/single_full.json
@@ -0,0 +1,17 @@
+{
+  "errors": [],
+  "messages": [],
+  "result": {
+    "variant": {
+      "id": "hero",
+      "neverRequireSignedURLs": true,
+      "options": {
+        "fit": "scale-down",
+        "height": 768,
+        "metadata": "none",
+        "width": 1366
+      }
+    }
+  },
+  "success": true
+}
diff --git a/testdata/fixtures/images_variants/single_list.json b/testdata/fixtures/images_variants/single_list.json
new file mode 100644
index 000000000000..1838aa6ce360
--- /dev/null
+++ b/testdata/fixtures/images_variants/single_list.json
@@ -0,0 +1,19 @@
+{
+  "errors": [],
+  "messages": [],
+  "result": {
+    "variants": {
+      "hero": {
+        "id": "hero",
+        "neverRequireSignedURLs": true,
+        "options": {
+          "fit": "scale-down",
+          "height": 768,
+          "metadata": "none",
+          "width": 1366
+        }
+      }
+    }
+  },
+  "success": true
+}