diff --git a/php-transformer/src/HtmlToBlocks/Style/AuthorStylesheetProjector.php b/php-transformer/src/HtmlToBlocks/Style/AuthorStylesheetProjector.php
index c26aeb86a..8183321ca 100644
--- a/php-transformer/src/HtmlToBlocks/Style/AuthorStylesheetProjector.php
+++ b/php-transformer/src/HtmlToBlocks/Style/AuthorStylesheetProjector.php
@@ -425,7 +425,7 @@ private function emitProjectedStyleRule(string $prelude, string $body, AuthorSty
         $svgImagePrelude = $this->projectAuthorImageSelectorPrelude($prelude, $context, 'svg', $declarations);
         $imageRule = '' === $imagePrelude
             ? ''
-            : $imagePrelude . '{' . $this->imageProjectionBridgeDeclarations($declarations) . '}';
+            : $this->imageProjectionBridgeRule($prelude, $imagePrelude, $declarations, $context);
         if ('' !== $imagePrelude) {
             // The generic Image bridge introduces block display and responsive
             // shrinkage. An inline source image in an auto table must instead
@@ -3335,8 +3335,44 @@ private function lineImageFigureRule(string $imagePrelude, array $declarations,
             . ( isset($declarations['vertical-align']) ? ';vertical-align:' . $declarations['vertical-align'] : '' ) . '}';
     }
 
+    /**
+     * The bridge lets the native image follow the figure that now carries the
+     * source rule. A selector whose subject is a bare `img` has nothing that
+     * moves to the figure, so the source rule still paints the image itself:
+     * inheriting the figure's corners there would replace the image's own
+     * radius at the same specificity, later in the cascade.
+     *
+     * @param array<string, string> $declarations
+     */
+    private function imageProjectionBridgeRule(string $prelude, string $imagePrelude, array $declarations, AuthorStylesheetProjectionContext $context): string
+    {
+        $selectors = CssStylesheetTransformer::splitSelectorList($prelude) ?? array();
+        $moved = array_values(array_filter($selectors, fn (string $selector): bool => ! $this->subjectStaysOnImage($selector, $context)));
+        if ( count($moved) === count($selectors) ) {
+            return $imagePrelude . '{' . $this->imageProjectionBridgeDeclarations($declarations) . '}';
+        }
+        $rule = $imagePrelude . '{' . $this->imageProjectionBridgeDeclarations($declarations, false, false) . '}';
+        $movedPrelude = array() === $moved ? '' : $this->projectAuthorImageSelectorPrelude(implode(',', $moved), $context);
+
+        return '' === $movedPrelude ? $rule : $rule . $movedPrelude . '{border-radius:inherit}';
+    }
+
+    private function subjectStaysOnImage(string $selector, AuthorStylesheetProjectionContext $context): bool
+    {
+        $parsed = $context->sourceStyles->parsedSelector($selector);
+        if ( ! $parsed['supported'] ) {
+            return false;
+        }
+        $subject = CssSelectorCompoundInspector::rightmost($parsed['compounds']);
+
+        return 'img' === strtolower((string) ($subject['type'] ?? ''))
+            && array() === ($subject['classes'] ?? array())
+            && array() === ($subject['ids'] ?? array())
+            && array() === ($subject['attributes'] ?? array());
+    }
+
     /** @param array<string, string> $declarations */
-    private function imageProjectionBridgeDeclarations(array $declarations, bool $preserveObjectFit = false): string
+    private function imageProjectionBridgeDeclarations(array $declarations, bool $preserveObjectFit = false, bool $inheritRadius = true): string
     {
         $bridge = array( 'display:block' );
         $position = strtolower(trim((string) ($declarations['position'] ?? '')));
@@ -3362,7 +3398,9 @@ private function imageProjectionBridgeDeclarations(array $declarations, bool $pr
         $objectFit = $this->explicitObjectFit($declarations);
         $bridge[] = 'object-fit:' . ($preserveObjectFit && '' !== $objectFit ? $objectFit : 'inherit');
         $bridge[] = 'object-position:inherit';
-        $bridge[] = 'border-radius:inherit';
+        if ( $inheritRadius ) {
+            $bridge[] = 'border-radius:inherit';
+        }
         return implode(';', $bridge);
     }
 
diff --git a/php-transformer/tests/unit/artifact-author-stylesheet-projection.php b/php-transformer/tests/unit/artifact-author-stylesheet-projection.php
index def8b1ce7..4993e3e24 100644
--- a/php-transformer/tests/unit/artifact-author-stylesheet-projection.php
+++ b/php-transformer/tests/unit/artifact-author-stylesheet-projection.php
@@ -553,6 +553,35 @@
 $assert(str_contains($positionedImageCss, 'object-fit:fill !important;object-position:-197.702px -102.702px !important'), 'image presentation carrier preserves source object fit and position for the nested image bridge');
 $assert(str_contains($positionedImageCss, '.map.wp-block-image > img,.map.wp-block-image > a > img{display:block;width:100%;height:100%;max-width:100%;object-fit:inherit;object-position:inherit;border-radius:inherit}'), 'nested image fills a wrapper with explicitly owned width and height, linked or not');
 
+// Corner radius follows whichever box the source rule paints after projection:
+// the figure when the image's class moved onto it, the image itself when the
+// rule's subject is a bare `img`.
+foreach (array(
+    'class moved to figure' => array('<img class="photo" src="p.jpg" alt="a">', '.photo{width:120px;height:120px;border-radius:50%}'),
+    'descendant img subject' => array('<div class="avatar"><img src="p.jpg" alt="a"></div>', '.avatar img{width:120px;height:120px;border-radius:50%}'),
+    'later radius-less breakpoint rule' => array('<div class="avatar"><img src="p.jpg" alt="a"></div>', '.avatar img{width:120px;height:120px;border-radius:50%}@media (min-width:1px){.avatar img{width:100px;height:100px}}'),
+    'mixed selector list' => array('<img class="photo" src="p.jpg" alt="a"><div class="avatar"><img src="p.jpg" alt="b"></div>', '.photo,.avatar img{width:120px;height:120px;border-radius:50%}'),
+) as $case => [$radiusHtml, $radiusCss]) {
+    $radius = ( new ArtifactCompiler() )->compile(array(
+        'files' => array(
+            array( 'path' => 'index.html', 'kind' => 'html', 'content' => '<link rel="stylesheet" href="r.css">' . $radiusHtml ),
+            array( 'path' => 'r.css', 'kind' => 'css', 'content_base64' => base64_encode($radiusCss) ),
+            array( 'path' => 'p.jpg', 'kind' => 'image', 'content' => 'image-bytes' ),
+        ),
+    ) )->toArray();
+    $radiusDocument = new DOMDocument();
+    @$radiusDocument->loadHTML('<body>' . preg_replace('/<!--.*?-->/s', '', (string) ($radius['serialized_blocks'] ?? '')) . '</body>');
+    $radiusCascade = new StaticCssCascade($radiusDocument, implode("\n", array_column($radius['assets'] ?? array(), 'content')));
+    $radii = array();
+    foreach ( $radiusDocument->getElementsByTagName('img') as $radiusImage ) {
+        $value = $radiusCascade->resolve($radiusImage, array( 'border-radius' ), array())['border-radius'] ?? '';
+        $radii[] = 'inherit' === $value && $radiusImage->parentNode instanceof DOMElement
+            ? ($radiusCascade->resolve($radiusImage->parentNode, array( 'border-radius' ), array())['border-radius'] ?? '')
+            : $value;
+    }
+    $assert(array() !== $radii && array( '50%' ) === array_values(array_unique($radii)), 'projected image keeps its source corner radius: ' . $case . ' (got ' . implode(', ', $radii) . ')');
+}
+
 $multiPage = ( new ArtifactCompiler() )->compile(array(
     'entrypoint' => 'index.html',
     'files' => array(