L/XL are same size
Ordered a large and xlarge. There is absolutely no difference in the bust only in length. If large chested even a small d cup would not buy this dress. Or any Lulus dress at that point. They only cater to smaller women.
Response from Lulus.com:
Hello Leah, thanks for your review! We're sorry to hear that this dress didn't work out for you. At Lulus we want you to feel comfortable and confident wearing our products. Our team of stylists (lulus.com/customerservice) would be happy to help you find items you love! xo