Since her engagement last February, Crown Princess Victoria has been waist-deep in wedding business: choosing her gown, flowers, and most importantly, her jewels.

Many details have not been made public yet, but one important tidbit we do know is that Victoria has chosen the Cameo tiara as her headpiece. One of the oldest jewels in the Swedish royal family’s collection, the Cameo tiara was worn by the princess’s mother, Silvia, when she married King Carl XVI Gustaf.

Owned by the French Empress Josephine, it was inherited by her granddaughter and namesake, Duchess Josephine of Leuchtenberg, who brought it to Sweden when she married the future King Oscar I. It has been passed down by the Bernadotte dynasty ever since.

We know what Victoria will be wearing for a tiara, but what about the other royal women attending the ceremony? What cascades of jewels will be adorning regal heads – and gowns – across Europe? Take a look at Royal Jewels of the World, Royal Dutch Jewels, and Royal Magazin for an idea of the magnificence that may appear on the day.

For more possibilities,

Princess Madeleine Possibilities:

Princess Mathilde possibilities:

Princess Maxima Possibilities:

Some Queen Silvia possibilities:

Princess Martha-Louise Possibilities: