What’s the difference between Chantilly, Alencon and French lace?

Chantilly is fine, delicate and floral with a soft tulle base; it’s the most classically romantic. Alencon is heavier, with corded outlines around the motifs and a more sculpted look. “French lace” is a broader term covering both, plus other styles like Solstiss. The choice changes the mood from soft and ethereal to structured and rich.