FREE: 10K Gold Marquise Cut Black Sapphire Ring~Size 7.5

The listing, 10K Gold Marquise Cut Black Sapphire Ring~Size 7.5 has ended.

10k Yellow Gold Filled Marquise Cut Black Sapphire Ring

Condition: New

Material: 10k Yellow Gold Filled

Size: 7.5

Main Stone Size: 8 x 4mm (Each)

Conversion: 25mm = 1inch

Gold-filled jewelry uses a technique in which thin layers of gold are bonded by heat and pressure to a brass center. Several layers of a core metal are surrounded by at least 10k gold. Jewelers usually note the ratio of gold to base metals. United States requirements state that gold-filled jewelry must contain no less than 1/20 its weight in gold.

Gold-plated jewelry has a thin molecule of gold overlaying a base metal such as zinc, copper or nickel. This thin layer is not 14k and usually wears off the base within a short period of time. Jewelry makers utilize an electrochemical process to bind the thin layer of gold to the base metal.