"The design of the wedding band is based off the design of the engagement ring, which is a 1920s Art Deco design," said Kate, who has her own personalised jewellery company called JewelMint. "We wanted to create a wedding band that incorporated 12 of these diamond baguettes for each month of the year."
"We are amazed at the level of execution of a design this unique," said Kate to Us Weekly "Because this is a ring worn every day, it is essential that it reflects our personal aesthetic."
"Collaborating with Kate was so wonderful," said Ocappi's creative director, Haki Abehsera. "She expressed how much she loved her engagement ring and how she wanted something to accompany it without taking too much attention away from it.
Kate, 30, and Michael, 42, tied the knot last weekend at The Ranch at Rock Creek in Montana.
The couple exchanged their personally-penned vows overlooking the lush hay meadows and rolling foothills typical of the region, in front of 50-75 guests.
The Blue Crush actress wore two custom Oscar de la Renta dresses for the big day, including a strapless ivory gown with a sweeping eight-foot-long, 16-foot-wide train for the ceremony. Michael, meanwhile, looked dapper in a three-piece charcoal Brooks Brothers suit.
After the ceremony, the wedding party made their way down the mountaintop to Granite Lodge for dinner and Kate changed into her second bespoke Oscar de la Renta gown.
Kate and Michael, who met on the set of Big Sur in 2011, got engaged when the film director proposed during a trip to South Korea. "I never even dated my husband-to-be," the actress has previously revealed. "He said to me after just a few weeks, before we were even together, 'I'm going to marry you.' He just knew."