Get up to 40% off diamond jewelry, then use the code SHINE in your cart for an extra 25% off select styles at Macys.com. Shipping is free for orders over $99 or when you add a beauty item to your cart, otherwise it adds $10.95. The promotion includes these TruMiracle Diamond Stud Earrings, which listed at $800. They were already on sale for $480, and they fall to $360 with the code. This Three-Stone Diamond Ring falls from $1,300 to $780 to $585 with the code. Those are the best prices we can find anywhere, and there are hundreds pieces to choose from. Note: Some styles are excluded from the extra discount code. Sales tax is charged in most states.