Embark genetic testing
Every parent is screened for 250+ heritable conditions before being bred.

A rare and stunning coat variation — and one that needs careful, ethical breeding. We walk through what to know.
A Blue Merle Yorkshire Terrier is a Yorkie carrying the merle gene — producing a mottled, marbled coat pattern with dilute blue/grey patches, often paired with one or two blue eyes. The look is striking and rare. The genetics need a careful breeder.
Merle is a single dominant gene that lightens random patches of a dog's coat (and sometimes their eyes). One copy of the gene produces a beautiful blue-merle look. Two copies — called "double merle" — produces serious health issues: deafness, blindness, and immune problems.
That means an ethical Blue Merle breeding pairs one merle parent with one non-merle parent — never merle to merle. Our program follows that standard without exception. Every Blue Merle puppy at Designer Yorkies comes from a single-merle pairing.
The merle pattern is unique to every puppy — no two are alike. You'll see:
Before reserving a Blue Merle puppy from any breeder:
Every parent is screened for 250+ heritable conditions before being bred.
Born in our home, socialized to family life from day one.
Five times the industry standard — covers genetic conditions in writing.
See what's currently available, or join the wait list to be first in line for the next litter.