Left navbar menu has a typo, should be 'guarantee'. Also the navbar seems to wide.
All <bold> text looks unprofessional.
If you use keywords they must be on the page, such as 'unisex rings' not found on the home page. Perhaps the SE's will think this is keyword spam.
Layout needs work, suggest viewing what other like-merchants websites look like and approximating it.
Needs text to go with the images, keywords for
SEO and some promotional spin text to create excitement to get the click. An inteligent mix of the 'proper text' and photos.
Also rewrite the title and description to include keywords and some catchy text to get the click. Keep in mind that your title/description is competing with 19 other's websites on a search engine page.
Needs information about the Merchant to provide transparency and gain creditability, so people will feel secure enought to give credit card info. Who am I dealing with? What makes them special, let visitors know!
I would suggest doing the above and come back for another review.