12 articles needed about engagement rings

I need 12 unique articles (400 words minimum) related to engagement rings. I will provide you the titles and keywords for each article. I want the written articles to be: --FULLY UNIQUE and ORIGINAL. --I will not accept rewritten articles from article directories or from other websites. However, you are free to get ideas from other websites and then write the articles on your own words and style. --Grammatically correct. --In Proper English language. --DO NOT use automated software to write the articles. --Articles must pass copyscape (I will check this). --Articles MUST be accurate and well researched. I will check accuracy of articles by myself and will not accept them if the information contained in the articles is not correct. I require native English speakers so that written articles are of high quality. Anyone who places a bid will need to provide me with a sample of their writing style. PM me with your sample article to verify your good writing ability. Once payment is completed, you agree that I will own all rights to the article, and that you should never use or post them anywhere without my written permission. Article writing work needs to be completed within 7 days. My budget for this project is $36 for all articles. I will pay via freelancer only. Please do not bid if you cannot meet all the requirements as stated above.