As one of its daily deals, Amazon takes up to 75% off a selection of diamond necklaces, earrings, and bracelets. (Prices are as marked.) Plus, Amazon Prime members bag free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it starts around $5.) Deal ends today. A couple of best bets:

• Amazon Collection Sterling Silver Blue Diamond Accent Square Pendant Necklace for $28.99 (pictured, $50 off)
• Amazon Collection 2-tcw 14-Karat Gold Black Diamond Stud Earrings for $179.99 (low by $163)

Orders placed by December 22 are guaranteed to arrive in time for Christmas via Prime shipping; otherwise, choose Standard shipping and place your order by December 19 for guaranteed delivery.