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2. Visual markers of marital status - Wikipedia

   en.wikipedia.org/wiki/Visual_markers_of_marital...

   A ring denies that status. For this reason, many modern Chinese men do not wear a wedding ring. Diamonds and two-partner wedding rings are advertised in modern China. [6] [7] The Japanese, despite American occupation in the 1950s, only acquired a culture for wedding and engagement rings in the 1960s. In 1959, the importing of diamonds was allowed.

3. Tungsten carbide - Wikipedia

   en.wikipedia.org/wiki/Tungsten_carbide

   Tungsten carbide (chemical formula: W C) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery, engineering facilities, [8] molding blocks, [9] cutting tools, chisels, abrasives, armor ...

4. Wedding ring - Wikipedia

   en.wikipedia.org/wiki/Wedding_ring

   A wedding ring is commonly worn on the ring finger. A pair of wedding rings. A wedding ring or wedding band is a finger ring that indicates that its wearer is married. [1] It is usually forged from metal, traditionally gold or another precious metal. Rings were used in ancient Rome during marriage. [2] In western culture, a wedding ring is ...

5. Tungsten - Wikipedia

   en.wikipedia.org/wiki/Tungsten

   The jewelry industry makes rings of sintered tungsten carbide, tungsten carbide/metal composites, and also metallic tungsten. [78] WC/metal composite rings use nickel as the metal matrix in place of cobalt because it takes a higher luster when polished. Sometimes manufacturers or retailers refer to tungsten carbide as a metal, but it is a ...

6. Engagement ring - Wikipedia

   en.wikipedia.org/wiki/Engagement_ring

   In Brazil, for example, the groom and bride-to-be usually wear a plain wedding band on the right hand during the course of their engagement. [53] After the wedding, the band is moved to the left hand. [citation needed] In Argentina, it is also known for the groom and bride-to-be to wear a plain silver band on the left hand while engaged. Then ...

7. Moissanite - Wikipedia

   en.wikipedia.org/wiki/Moissanite

   A moissanite engagement ring Moissanite: emerald cut. Moissanite was introduced to the jewelry market as a diamond alternative in 1998 after Charles & Colvard (formerly known as C3 Inc.) received patents to create and market lab-grown silicon carbide gemstones, becoming the first firm to do so. By 2018 all patents on the original process world ...