18K Yellow Gold Christening Medal

What diameter should you choose for an 18K yellow gold christening medal?

An 18K yellow gold christening medal is chosen first by its size. Common diameters range from 14 to 22 mm, with a standard around 18 mm — roughly the size of a 1-euro coin. Below 16 mm, the medal suits an infant or a discreet piece; above 20 mm, it takes on a bolder presence, often chosen for adult wear or to leave more room for engraving. Weight naturally follows diameter: a 14 mm medal in 750/1000 gold rarely weighs more than a gram, while a 22 mm model can approach three grams depending on the thickness of the strike.

Which motif for which first name or patron saint?

The choice of motif often follows a precise logic: the child’s first name, the family’s patron saint, or a particular devotion. The Miraculous Virgin remains the most requested: her iconography dates back to the apparition reported by Catherine Labouré in 1830, and she is recognized by her open hands from which rays of light emanate. The Virgin and Child, more classic, suits a Marian first name or a christening without a specific patron saint. Christ and the Sacred Heart are chosen for a stronger symbolism, while Saint Christopher is traditionally given to a child born under the sign of travel or protection, and Saint Michael to one born on September 29th. The dove and the tree of life, more neutral motifs, work well when no particular saint’s image is called for — they are also the only truly unisex designs without strong gender connotation. Some pieces feature a mother-of-pearl cabochon at the center of the motif, which visually lightens the medal without changing its gold purity.

Practical criteria before buying

• Diameter by age: 14-16 mm for an infant, 18-20 mm for wear that will last into the teenage years
• Motif based on the first name or the family’s patron saint, or a neutral design (dove, tree of life) if there is no preference
• Girl, boy, or unisex version depending on the edge treatment and finish
• Available space for engraving, proportional to the chosen diameter

Which chain should accompany an 18K yellow gold christening medal?

The medal is never worn alone: it is paired with a chain, ideally in the same gold purity for a matching hallmark. For a child, the length ranges between 40 and 45 cm, adjustable depending on build. As for the link style, the curb chain remains the most popular for its sturdiness and understated look, the rope chain adds more shine thanks to its tight twist, the figaro chain holds up better over time for an active child, and the omega chain, wider and flatter, is better suited to adult wear since it showcases the medal so well.

Should you engrave an 18K yellow gold christening medal?

A christening medal is engraved on the back, usually with the child’s first name and the christening date. The available space depends directly on the diameter: on a 14 mm model, only a few letters fit legibly, while a 20 mm model allows for the full first name and date on two lines. An experienced engraver adapts the character size to the exact back surface of each model — engraving only makes sense once the diameter has been decided, never before.

18K yellow gold: what does this purity guarantee?

18K gold corresponds to a purity of 750/1000, meaning 75% pure gold alloyed with silver and copper for strength and the yellow hue. It is the most common purity in christening jewelry, above 9K gold (375/1000), which is more affordable but also more prone to wear on a piece worn daily by a child. The official hallmark — an eagle’s head for French gold — certifies this purity and distinguishes the piece from a vermeil or solid 925 silver model that is simply gold-plated on the surface.

How do I choose the right size for an 18K yellow gold christening medal?

Most christening medals in this collection range from 14 mm to 20 mm in diameter. A 14–16 mm medal suits a newborn’s chest without weighing down a fine chain, while 18–20 mm reads better as a keepsake worn later in life. If you are buying a baptism medal for a baby girl or boy under six months, stay at 15 mm and pair it with a 38 cm chain.

What is the difference between 18K yellow gold and gold-plated christening medals?

18K yellow gold is 75% pure gold alloyed with copper and silver throughout the metal, so the colour never wears off. Gold-plated pieces carry a microns-thin layer over brass that rubs away within a few years. A solid 18K gold baptism medal keeps its hallmark, its resale value, and stays hypoallergenic on infant skin — worth the difference for an heirloom.

How should I clean and care for an 18K gold baptism medal?

Soak the medal for ten minutes in lukewarm water with a drop of mild dish soap, brush the engraved areas with a soft toothbrush, rinse and dry with a lint-free cloth. Skip ultrasonic cleaners if the medal holds enamel or gemstones. Store your engraved gold christening medal in a fabric pouch, away from perfume, chlorine and other jewellery that could scratch it.

Which patterns work best as a godparent’s gift?

Across the 92 pieces here, the Miraculous Virgin, guardian angel and Christ profile remain the classic choices for godparents. Angel and zodiac designs suit families wanting something less devotional. Most medals have a smooth reverse side, so a personalised christening medal with the child’s name and baptism date can be engraved before delivery — allow a few extra days for that step.