Sigillo Ring
This edgy 18 karat white gold diamond encrusted signet ring, is set with 3.28 carats of black diamonds and 0.24 carats of white diamonds FG color, VVS clarity.
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. All diamonds used are purchased from legitimate sources and conflict free. Only diamonds of the highest quality standard in terms of Clarity, Color and Cut are used.
18 Karat White 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. 18k white gold is an alloy made up of 75% pure gold and 25% palladium.
Rhodium Plating
Rhodium comes from the platinum family and is a noble and durable metal which features a bright white color. Rhodium plating is used on silver, gold and copper gives an off-white color, creating a bright mirror-like finish. More benefits of rhodium plating include enhanced brightness, scratch and tarnishing resistance. It is also hypoallergenic and nickel-free.
Black Diamond
Black diamond is one of the toughest forms of natural diamond. Natural black diamonds are formed in locations separate from other varieties, most notably in central Africa and Brazil.These precious gems have natural inclusions of graphite and similar minerals. Because they interact with light differently than other diamonds, they appear black.
Diamond
Diamonds are a form of the element carbon with a crystal structure. Diamond's great hardness relative to other materials has been known since antiquity, and is the source of its name derived from the ancient Greek ἀδάμας that means "unbreakable". Diamonds are the hardest natural substance on earth and rate a 10 on the Mohs Hardness Scale. Diamond is also known as April's birthstone. They are thought to be first recognized and mined in India many centuries ago.Four characteristics, known informally as the "Four Cs", are now commonly used as the basic descriptors of diamonds: Carat, Clarity, Color and Cut.This system was developed by GIA (Gemological Institute of America), one of the major gemological associations internationally recognized to evaluate diamond characteristics.The carat weight measures the mass of a diamond and the clarity is a measure of internal defects of a diamond called inclusions. GIA’s D-to-Z diamond color-grading system measures the degree of colorlessness: the finest quality as per color grading is totally colorless, which is graded as D color diamond across the globe, meaning it is absolutely free from any color. Last, the cut of a diamond describes the quality of workmanship and the angles to which a diamond is cut.