diff --git a/packages/block-library/src/image/style.scss b/packages/block-library/src/image/style.scss
index c6268a7a115ef..b5e53e841caff 100644
--- a/packages/block-library/src/image/style.scss
+++ b/packages/block-library/src/image/style.scss
@@ -93,3 +93,13 @@
 .wp-block-image figure {
 	margin: 0;
 }
+
+// Set baseline border styles with zero specificity to improve visual feedback
+// when user alters individual border properties via block support UI.
+html :where(.wp-block-image img) {
+	border: 0 solid currentColor;
+}
+
+html :where(.wp-block-image__crop-area) {
+	border: 0 solid currentColor;
+}