Royal Caribbean Jewelry Purchase Rip-Off

My wife and I recently sailed on Voyager of the Seas, a Royal Caribbean luxury cruiseliner. While onboard we received literature and verbal guarantees that as long we used their "approved vendors" who by the way pay a fee to become an approved vendor, they can then advertise in cruise brochures and literature. The literature even states that the vendors are inspected and represented as being reputable. Thus, we could rest assured that our jewelry purchases would be guaranteed as to quality and value.

With this assurance and guarantee we decided to purchase an expensive piece of jewely in Jamaica. The ONLY reason we decided to purchase jewelry was this guarantee. The Royal Caribbean media guide indicated, and an employee on board the Voyager of the Seas stated that if the jewelry purchased did not appraise at the value, quality, and workmanship represented by the jeweler, we could return the diamond ring for a refund.

The diamond ring we purchased was represented as being more valuable and of higher quality than it is in fact.

Upon returning to the USA, we took the ring to a certified gemologist who informed us of the following:

The ring is VS1, below its VVS2 rating.
The color is M/N, far below its J/K rating.
The 18k white gold is actually just simply a plating and will rub off and fade in a short time, revealing a 14k gold body.
The invisible setting is damaged and was repaired in three places.
Three of the princess cut stones surrounding the main setting have been chipped and are broken.