Isabella Fawn French Bulldog
Warm fawn body with ultra-pale champagne-lilac mask and shading. Four loci combine for one of the rarest fawn-based Frenchie combinations.
What Makes an Isabella Fawn Frenchie Special
The Isabella Fawn French Bulldog is one of the rarest fawn-based combinations because it requires four separate loci to all express recessive alleles simultaneously. The ay/ay (or ay/at) genotype at the A-locus produces the warm fawn/tan body coloration.
Then d/d (dilute) + b/b (testable chocolate) + co/co (cocoa) combine to create the ultra-pale champagne-lilac mask and shading on the face, ears, and body edges. The result is breathtaking: a warm, earthy body contrasted with ethereal, nearly-white facial features.
The rarity of this combination — often 1 in 64 to 1 in 256 puppies from carrier parents — makes Isabella Fawn one of the most valuable and sought-after Frenchie color combinations in the exotic market.
The Isabella Fawn Genotype
D-Locus
Required: d/d
Dilute lightens black pigment to blue-gray — the first step toward the pale Isabella mask.
B-Locus
Required: b/b
Testable chocolate adds warm brown tones that shift the dilute base toward champagne.
Co-Locus
Required: co/co
Cocoa lightens further, creating the ultra-pale champagne-lilac shade unique to Isabella.
A-Locus
Required: ay/ay or ay/at
The fawn allele produces warm tan coloration over the entire body, limiting the pale Isabella to the mask.
Why Isabella Fawn Is So Rare
1 Locus
25%
Single recessive — common in carrier populations
2 Loci
6.25%
Blue Fawn (d/d + ay) — uncommon but achievable
3 Loci
1.56%
Lilac Fawn (d/d + co/co + ay) — rare, valuable
4 Loci
0.39%
Isabella Fawn — ultra-rare, 1 in 256 from carriers
Isabella Fawn Frenchie Pricing Guide
Pet Quality
$15,000 – $20,000
Standard Isabella fawn with acceptable mask and good conformation.
Breed Quality
$20,000 – $30,000
Clean structure, vivid fawn body, clear pale mask, full health clearances.
Ultra / Show
$30,000 – $45,000+
Near-perfect structure, proven pedigree, championship lines, ethereal color.
Calculate Isabella Fawn Probabilities
Enter parent genotypes into our Frenchie DNA Calculator to predict exactly what colors and patterns each litter will produce — including Isabella Fawn outcomes.
Isabella Fawn Frenchie FAQ
What is an Isabella Fawn French Bulldog?
An Isabella Fawn French Bulldog has a warm fawn/tan body color with an ultra-pale champagne-lilac mask and shading. The fawn comes from the A-locus (ay/ay or ay/at), and the Isabella color comes from d/d (dilute) + b/b (testable chocolate) + co/co (cocoa). This creates a warm tan body with ethereal pale facial features.
What is the genotype of an Isabella Fawn Frenchie?
The genotype is d/d + b/b + co/co + ay/ay (or ay/at). Four loci are involved: D-locus for dilute, B-locus for testable chocolate, Co-locus for cocoa, and A-locus for fawn. This makes Isabella Fawn one of the rarest fawn-based combinations.
How is Isabella Fawn different from Lilac Fawn?
Lilac Fawn is d/d + co/co + ay/ay (three loci). Isabella Fawn adds b/b (testable chocolate), making it d/d + b/b + co/co + ay/ay (four loci). The additional chocolate gene lightens the lilac mask into the ultra-pale champagne shade unique to Isabella.
How rare are Isabella Fawn Frenchies?
Extremely rare. Producing an Isabella Fawn requires four recessive loci to express simultaneously. The probability from two carrier parents is roughly 1 in 64 to 1 in 256 depending on exact genotypes. Many breeders never produce one in their career.
How much does an Isabella Fawn Frenchie cost?
Isabella Fawn French Bulldogs typically range from $15,000 to $25,000 for pet quality. Premium specimens with warm fawn body, clear pale mask, and clean structure can reach $25,000–$40,000. The four-locus requirement makes this one of the most expensive fawn combinations.
Can an Isabella Fawn carry other genes?
Yes. An Isabella Fawn can carry e/e (cream) as a hidden gene, which would produce a Platinum Fawn if bred to another e/e carrier. It can also carry M/m (merle) to produce an Isabella Merle Fawn, or l/l (longhair) for a Fluffy Isabella Fawn — each adding significant value.