Brandon Blackstock and Kelly Clarkson
10/22/2013 at 11:00 AM EDT
No bridezilla here!
When Kelly Clarkson
, 31, tied the knot
with Brandon Blackstock, 36, on Sunday in a surprise ceremony at the private Blackberry Farm in eastern Tennessee, the singer kept things sweet and simple.
Carrying an earthy bouquet of yellow dusty miller blooms and purple statice blossoms, she donned a Temperley Bridal "Jessamine" gown and Maria Elena crystal-studded headpiece.
The dress showcased her "Jane Austen-meets-country-relaxed feel," says the star's stylist, Steph Ashmore. "It feels like an heirloom."
Her wedding band, meanwhile, interlocked with the yellow-diamond engagement ring from Beverly Hills jewelry designer Johnathon Arndt. It features about 4.24 carats of diamonds.
"When you see Kelly and Brandon together," says Arndt, a friend, "they are just as in love as you would think of in a fairy tale."
For much more on Kelly's wedding, including the "pre-celebration" the couple hosted at their home for close friends and family, pick up this week's issue of PEOPLE, on newsstands FridayPLUS: Watch for PEOPLE on
Katie every Thursday. Check your local listings for times.