Kylie Lim, fiancée of Australian billionaire James Packer, has offered a clear view of her substantial diamond engagement ring, with experts estimating its value at up to $1.2 million. The couple was recently seen aboard Packer's $200 million superyacht, IJE, off the Italian Riviera.

While boarding the 108-meter vessel in Portofino, Lim inadvertently displayed the ring, which Packer presented to her after they confirmed their engagement in March. Jewellery experts believe the stone is an Elongated Cushion Cut, characterized by its whiteness, suggesting high color and clarity, and identify it as a natural diamond. The estimated weight of the diamond is between 10 and 13 carats.

The couple, whose on-again, off-again relationship dates back to 2017, appeared relaxed during their Mediterranean outing. Lim wore a baby blue halter neck top and matching shorts, accessorizing with a designer Pucci shopping bag. The superyacht IJE, named after Packer's three children, has become a frequent retreat for the businessman.

Packer, 58, has spoken candidly about his past struggles with mental health and substance abuse, stating he is now in a "good place." He has previously credited Lim with positively influencing his life, saying, "Kylie has been a wonderful influence on my life. I love her very much."

The couple rekindled their romance last year and confirmed their engagement in March. Packer has previously been engaged to Kate Fischer, Jodhi Meares, and Erica Baxter, as well as Mariah Carey. He married Meares and Baxter, with whom he has three children. Packer and Lim reportedly began dating in 2017 after being introduced by mutual friends in Aspen.