As one of its daily deals, Amazon cuts up to 70% off lab-grown diamond jewelry, with prices starting from $159. (Prices are as marked.) Plus, most orders qualify for free one-day shipping. Deals end today. A couple of best bets:

• 1/2-Total Carat Weight Solitaire Diamond Pendant Necklace for $599 (pictured, $1,400 off)
• 1/2-Total Carat Weight Diamond Stud Earrings for $699 ($800 off)