*Halle Berry’s fiancé Olivier Martinez has taken “put a ring on it” to a whole new level.

According to People.com, Martinez commissioned the engagement ring last year from his Paris neighbor, Robert Mazlo. It’s “a one-of-a-kind piece and cannot be replaced” and truly “symbolizes the couple’s story,” the jeweler says.

Its emerald is perfect in color, its yellow-gold setting was hand forged, and instead of an inscription, it contains codes and symbols that only its wearer can understand, according to jeweler.

The ring’s 4-carat emerald comes from old, “closed-down mines in Muzo, Colombia and the color is perfect,” the house continues. “The balance between the blue and the yellow in the green in that stone is perfect.”

The design also incorporates two diamonds in a textured, yellow-gold setting forged according to ancient Phoenician tradition. And while it doesn’t have an inscription per se, it does have hidden meaning.

“The ring is textured and contains codes and symbols which you cannot see … only the person wearing it can,” the jeweler says. “It’s very uncommon. The symbols and codes represent [the couple’s] story and only they can interpret it.”

Mazlo, who has known Martinez for several years, didn’t realize he was creating an engagement ring when the actor came calling. But his house tells People he “was very touched to be involved in [the couple’s] story.”

Meanwhile, Us Weekly is reporting that Martinez took an ”alchemy test” to help craft the ring’s coded message. The 46-year-old actor was apparently ordered to take the 500-year-old mystical quiz, which features seven questions about his “Dark Tides” co-star’s favorite shapes, colors, numbers and signs, which Mazlo decoded and used to perfect the ring.