Since the thread got revived, I will finish the story.
After my last post my wife called our credit card company and they immediately refunded our purchase price. DI Cozumel protested on the very last possible day, claiming she had received the ring - at the same time we received a letter from DI "customer service" offering a discount to take the ring. We forwarded that letter to our credit card company and they upheld our claim.
At this point I would believe DI if they told me it was raining and I was getting wet.
All I ask is a tall ship and a star to steer her by; John Masefield
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, 2014, Caribbean 2013, Coral 2014, Regal 2014, 2016
Sail Windjammer: Mandalay 2017
Star Clippers: Royal Clipper 2015