Triple-Locus Ultra-Light
New Shade Isabella Frenchie
The lightest champagne expression of d/d + b/b + co/co. The palest, most ethereal brown pigment possible in French Bulldogs.
Model Isabella PairingsThree Genes Create New Shade Isabella
New Shade Isabella requires the same three-locus stack as regular Isabella. The 'New Shade' describes the lightest visual expression of the same genotype.
D-Locus (d/d)
Dilute lightens all pigment. Black becomes blue, brown becomes a lighter shade. The first layer of lightening.
B-Locus (b/b)
Chocolate changes black pigment to brown. Combined with dilute, this creates the lilac base tone.
Co-Locus (co/co)
Cocoa further lightens the brown pigment. Combined with b/b and d/d, this creates the ultra-pale Isabella shade.
New Shade vs. Regular Isabella
Same genotype, different visual expression. Understanding the distinction helps buyers know exactly what they are paying for.
Regular Isabella
d/d + b/b + co/co
Champagne-taupe coat with light brown nose and paw pads. Visibly lighter than lilac but retains some warm brown undertone.
$10,000 – $20,000
New Shade Isabella
d/d + b/b + co/co
The lightest possible champagne expression. Almost silvery-pale with minimal brown undertone. Ethereal, nearly iridescent appearance.
$12,000 – $25,000+
DNA tests cannot distinguish between regular and New Shade Isabella — both are d/d + b/b + co/co. The difference is visual only, driven by modifiers and individual pigment expression.
Breeding for New Shade Isabella
Producing d/d + b/b + co/co requires all three recessive alleles. Here are the most common breeding strategies.
New Shade Isabella Pricing
New Shade Isabella sits at the absolute peak of the Frenchie market. Prices reflect extreme genetic rarity and visual impact.
Pet Quality
$10,000 – $15,000
Light champagne Isabella with minor flaws. DNA-verified triple-locus and health clearances.
Breed Quality
$15,000 – $25,000
Ultra-pale expression, full health clearances, AKC registration, proven triple-locus genotype.
Fluffy NS Isabella
$25,000 – $40,000+
New Shade Isabella + longhair gene (L/L). The absolute rarest combination in the Frenchie world.
Model Isabella & New Shade Pairings
Our DNA Calculator covers D-locus, B-locus, and co-locus simultaneously. Predict Isabella, lilac, chocolate, and cocoa outcomes with full accuracy.
Open the DNA CalculatorFrequently Asked Questions
What is a New Shade Isabella French Bulldog?
A New Shade Isabella French Bulldog is produced by stacking three recessive genes: d/d (dilute at the D-locus), b/b (chocolate at the B-locus), and co/co (cocoa at the co-locus). The cocoa gene (co/co) further lightens the brown pigment beyond what dilute + chocolate alone produce. The result is an even paler, more champagne-toned Isabella — the lightest and most visually striking expression of brown pigment possible in French Bulldogs.
How does New Shade Isabella differ from regular Isabella?
Both regular Isabella and New Shade Isabella require d/d + b/b + co/co. The term 'New Shade' is primarily a marketing term used by breeders to describe the lightest, most champagne-pale expression of the Isabella genotype. There is no additional gene beyond the three-locus combination. The visual difference comes from modifiers, coat texture, lighting, and individual pigment expression. Some dogs with the same genotype appear slightly darker or lighter than others.
How much does a New Shade Isabella French Bulldog cost?
New Shade Isabella French Bulldogs typically cost between $12,000 and $25,000. This is at the very top of the Frenchie market. Prices depend on how pale and champagne-toned the dog appears, structural quality, health clearances, and whether additional rare traits like fluffy (L/L) or merle (M) are present. Fluffy New Shade Isabella can command $20,000 to $40,000 or more.
Is New Shade Isabella genetically different from Isabella?
No. Both are genetically d/d + b/b + co/co. There is no separate 'New Shade' gene or allele. The term describes the visual phenotype — the lightest possible expression of the three-locus Isabella combination. A DNA test cannot distinguish between 'regular' Isabella and 'New Shade' Isabella because they share the exact same genotype. The difference is purely in visual appearance.
How do I breed for New Shade Isabella?
To produce New Shade Isabella puppies, both parents must contribute d, b, and co alleles. The ideal pairing is two Isabella dogs (d/d, b/b, co/co) — this produces 100% Isabella puppies. Alternatively, you can pair dogs that carry all three genes even if they do not express them (e.g., D/d, B/b, Co/co carriers), but the probability drops to 1 in 64 (1.56%) for d/d + b/b + co/co. The DNA Calculator models these complex multi-locus probabilities for you.
Can New Shade Isabella Frenchies have health problems?
The color genes that produce New Shade Isabella (B, D, and co) do not cause health problems. However, because New Shade Isabella is among the most expensive and sought-after Frenchie colors, unethical breeders may skip health testing to maximize profit. Always demand DM, HUU, JHC, and CMR1 clearances. A New Shade Isabella from a health-tested, ethical breeder is just as healthy as any other Frenchie.