45th anniversary necklaces mark a rare milestone with blue sapphire, the traditional gemstone for this celebration. Our collection of 431 sterling silver necklaces features natural sapphires in deep blues ranging from midnight navy to cornflower. Blue sapphire rates 9 on the Mohs hardness scale, second only to diamond, making it durable enough for daily wear across decades. Prices range from $479 to $38,569, with each piece set in .925 sterling silver and shipped free within the United States.
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Blue sapphire is the designated gemstone for the 45th anniversary on both traditional and modern gift lists. This association has historical roots connecting sapphire with marital loyalty and enduring commitment.
Sapphire rates 9 on the Mohs hardness scale, making it resistant to scratches and suitable for jewelry worn regularly. Its durability means a sapphire necklace can last through many more years of marriage.