JSON-LD has a built-in, standard solution for this, the @graph structure combined with @id references, and using it correctly avoids the “circular reference” problem entirely rather than triggering some special Google penalty for having one. A page that’s legitimately, say, a Product sold by an Organization, reviewed by a Person, and part of a BreadcrumbList doesn’t need each entity awkwardly nested inside the next. It needs each entity defined once with a stable @id, and every other entity that needs to reference it points to that @id instead of re-declaring or circularly embedding the whole object again.
The mechanism: how @graph and @id actually solve this
In plain JSON-LD without the graph structure, if Entity A needs to reference Entity B, and Entity B also needs to reference Entity A, naively nesting one fully inside the other creates exactly the circular structure the question describes, Product contains Organization contains (recursively) the Product again, and so on. This isn’t just inelegant, it can create real parsing ambiguity or duplicate-entity confusion for any consumer of the markup, including Google’s structured data parser.
The JSON-LD specification’s solution is to flatten the structure into a single @graph array at the top level, where each entity (Product, Organization, Person, BreadcrumbList, whatever the page genuinely represents) is defined once as a sibling node in that array, each carrying its own unique @id (typically a URL fragment identifier, like https://example.com/product/123#product or #organization). Wherever one entity needs to reference another, instead of re-embedding the full object, it includes a lightweight reference object containing only @id pointing at the other entity’s identifier. Google’s own structured data documentation supports this pattern (the @graph and @id conventions are part of the JSON-LD spec itself, not a Google-specific invention, and Google’s parser is built to handle standard JSON-LD including this construct).
This accomplishes two things simultaneously: it eliminates the literal circular nesting problem (nothing is embedded inside itself; references are lightweight pointers), and it de-duplicates entities that would otherwise need to be redundantly redeclared every time another node references them, which is exactly the scenario multi-entity pages create.
Why poorly implemented nesting still causes real problems
The caveat worth being precise about: the risk here is a data-modeling correctness issue, not a documented Google policy against “circular references” as a named violation category. Google hasn’t published a specific penalty framework for pages with awkwardly structured schema. The actual risk is more mundane and more mechanical: if entities are nested without proper @id anchoring, a parser (Google’s or any other JSON-LD consumer) can end up interpreting what should be one entity as multiple duplicate entities, or fail to resolve which nested object is the “real” definition versus a partial reference, leading to inconsistent or incomplete extraction of the structured data rather than a clean read of the page’s actual entity graph. In practice this shows up as validation tools flagging ambiguous or duplicate type declarations, or as some properties simply not being picked up because the parser couldn’t cleanly resolve which entity they belonged to.
A practical implementation pattern
A page representing a Product with an Organization as seller, an aggregateRating, and breadcrumb navigation might structure this as:
A top-level @graph array containing: one Product node with its own @id (for example #product), with its brand or seller property referencing the Organization node by @id ({"@id": "#organization"}) rather than re-embedding the full Organization object; one Organization node, defined once with its own @id, containing the actual organization details; one BreadcrumbList node referencing the same page’s URL; and, if reviews are present, Review nodes referencing the Product’s @id rather than being nested inside it.
Each entity is authored exactly once. Every cross-reference is a pointer, not a copy. This is the standard, spec-compliant technical solution, and it scales cleanly even as the number of interrelated entities on a page grows, which matters for anything beyond a simple two-entity relationship (a page with Product, Organization, Person-as-author, Review, and BreadcrumbList all interconnected is common on modern e-commerce and publisher sites, and the @graph/@id pattern is what keeps that manageable without redundant, error-prone duplication of the same entity data in five different places on the same page).
The practical takeaway: if you’re finding yourself trying to nest one schema type inside another that itself needs to reference the first, that’s the signal you need @graph and @id, not a signal that the entities can’t legitimately coexist on the page. The relationship is real and schema.org/JSON-LD supports expressing it; the nesting approach is simply the wrong tool for it.