The Harmonie necklace from Mystery Joy is part of the Game Illusion Collection. Made in 18K gold with lab-grown Lab-Grown Diamonds, the design draws inspiration from the world of cards and games, blending playful symbolism with modern sophistication. Material: Gold Karat: 18K Stone: Lab-Grown Diamond Stone Carat: 0,42 ct Stone Type: VS Chain length: 50 Does it come with certificate?: Yes Can the piece be engraved? Yes