K750, also called "G750" (or 18K), refers to a kind of jewelry with a pure gold content of 999, that is, 75% gold and 25% other metal alloys.

The primary color of 18K gold is golden yellow, while white 18K gold is the color after electroplating. If you often touch articles containing chemical components (such as skin care products, hand sanitizer, vinegar, etc.). ), the electroplated layer will be easily corroded, revealing the primary color of G750 gold. Therefore, please take off your necklace when removing makeup or taking a shower.

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18K gold maintenance precautions:

1, you can buy a bottle of jewelry cleaning solution, soak it in a certain proportion, and remember to clean it with a soft cloth.

2. If it turns black and becomes seriously discolored, it is not enough to just clean it. You need to take the jewelry to the jewelry store and ask a professional master to renovate or electroplate it to restore it as new.

The most important thing to pay attention to when buying 18K gold diamond ring is the 4C grade of the diamond. Weight, clarity, color and cutting are not only important factors to measure the price of diamond ring, but also important factors to determine whether diamond ring is transparent, pure and shiny.

Pay attention to the selection of 18K gold clarity above the SI2 level, preferably VVS to VS level; The color should be above J color, preferably D-F color, and the cutting should be above G level, preferably EX or VG level. If the budget is limited, then pay attention to appropriately reducing the weight requirements and choose a 18K gold diamond ring with higher clarity, color and cutting grade.