This piece has been hand manufactured by trusted and highly qualified craftsmen according to the best Italian goldsmith tradition using the latest technology. Alex Jona hallmark 404TO guarantees the origin of the product and the precious metal content is confirmed by the official gold hallmarks.
18 Karat Yellow Gold
18k (75%) gold is the purest form of gold used for jewelry (pure 100% gold is 24 karats by definition). 18k means that 18 out of the 24 parts that make up the gold are pure gold. The most common hallmark stamps for 18 karat gold are 18K or 750 that indicate 75% gold purity. 18k yellow gold is an alloy made up of 75% pure gold and 25% alloy (12.5% copper, 12.5% silver).
Sapphires are, together with Rubies, the most popular gem varieties of Corundum. With a Mohs scale rating of 9, Corundum is the second hardest mineral, second to diamond. Sapphire is any color of corundum except red (Rubies are red corundum). Vivid, transparent blue is the most rare and prized color. Stones from Kashmir or Burma are often fine quality and are highly coveted. As with rubies, some cabochon cut stones exhibit a cat's eye or 6-rayed star. With a rating of 9 on the Mohs Scale, sapphires are extremely durable and ideal for jewelry. As September's birthstone, the sapphire symbolizes truth, love, wisdom and generosity.
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