Today only, the Delta Skymiles Shopping Website is offering 8 miles per dollar for all purchases at Blue Nile. Blue Nile is an online retailer of certified diamonds and fine jewelry. While I personally have never purchased anything from Blue Nile (and no, I have no affiliation with this company), getting 8 miles per dollar on jewelry is amazing! For a $10,000 engagement ring, for instance, you can also walk away with a free round-trip ticket to Australia or Asia (as well as many other places) to use on your honeymoon! I do have friends who have purchased jewelry and engagement rings from this site and they do offer free shipping and a 30-day return policy (they have been very pleased with the quality and price as well). I more so just enjoy that an engagement ring (assuming it cost the same elsewhere) can also help you out with your honeymoon!
To earn these bonus points (normally it is 2 miles/dollar), you will need to enter your Delta Skymiles number (or register for a number if you not currently a member), then enter your email, name, and zip code. Ensure this is the same information that is linked to your Skymiles account. You will then be brought directly to the Blue Nile website and can shop and checkout as you normally would.
I personally use the American Advantage Shopping portal for all my online purchases, but it can definitely pay off to use the website that is offering the best bonus promotion. Many times different airline websites, along with American Express Membership Rewards and Chase Ultimate Reward, have unbelievable bonus promotions for just purchasing your online order through their site. It does not cost you more and ultimately takes you directly to the website, where you can purchase your item as you normally do. The only flaw to this system is that sometimes miles take weeks (more like months) to post and at times never post at all (resulting in you having to keep up with it and making a few annoying phone calls).