Sixteen inches sits at the base of the neck, eighteen just below the collarbone — the most versatile length — and twenty inches and above sit on the chest. If you intend to layer, choose lengths at least four inches apart so the pieces do not land on top of one another. The full table is on our Size & Fit Guide, and if the length turns out wrong you have 14 days from delivery to return it.

Yes. Every piece is made in genuine metal — 10K, 14K, or 18K gold, or 925 sterling silver. All pieces are stamped with the corresponding metal marking.

In time, yes. Silver reacts with sulfur present in ordinary air, and the darkening that follows is chemistry rather than a fault or a defect. A soft dry cloth lifts it. Storing the piece in a closed pouch away from humidity slows it down, and rhodium plating, where a piece carries it, slows it further still.

Yes. Every Sana Jewels piece is covered against manufacturing defects from the date of delivery, and a missing stone is replaced free under the same warranty. It is valid in the USA only, and any repair performed by another jeweler will void it. The full terms, including the coverage period and the limits on stone size, are in our Return & Refund Policy.