I think wearing jewels or making your hair look nice isn't bad in itself, as the text states. What Paul is saying is that when a woman makes her appearance more important than her character, it is wrong. If it is drawing unwanted attention of men, it's wrong as well. Another problem that many - if not nearly all - churches face, is the fact that many Christian girls and women are wearing shorts or skirts that reveal the thigh, which is called showing your nakedness according the Bible (Isaiah 47:2-3). When Christian girls or women wear skirts or shorts that show their thigh, they are literally associating themselves with the daughter of Babylon in Isaiah 47:1. Everyone knows that the daughter of Babylon is an allegorical usage of the destruction of an entity (regardless of what you believe it is: Rome, New York, Mecca) and who is called a harlot, or a harlot's daughter rather. So, Christian girls and women should ask themselves if they are like this harlot's daughter who is called naked by showing her thigh or if they look like Godly women.
Just FYI, skirts above the knees were never worn in any Christian society that I know of for the last 2,000 years until after the 1950's. The question one might ask, is this: Has the church forgotten about God's idea of modest apparel of women or are they choosing to ignore the facts:
(1) showing your thigh is called nakedness in the Bible (Isaiah 47:2-3);
(2) nowhere throughout Christian (or Jewish) history skirts were worn that were above knee-length;
(3) it is a fact that when a man sees a woman who is showing her thigh, he is sexually enticed (some might argue with me on this point, but we all know many men can't get their eyes off a woman's buttocks or legs when he's walking behind her while she's wearing a mini-skirt (above knees). If a mini-skirt would be an "OK-thing-to-do", then why aren't men making vulgar comments on women wearing skirts that are below the knee?
(4) is there any Scriptural reason to prefer a mini-skirt rather than a "long" skirt?
To all the femenist "Christians" out there who read this, I say: you don't have to believe me, believe the Bible (Isaiah 47)!