If you go to the store to buy it, it is estimated that it is about 30 diamonds.
I suggest you popularize the measurement of diamonds, which is called 4C. This is very helpful to you.
We should consider the following four aspects (4C):
(1) color: colorless is the best, and the darker the tone, the worse the quality. In the color classification of colorless diamonds, the top color is D, which is arranged in the order of Z. We only talk about the color hierarchy from D to J, where D-G is colorless and G-J is nearly colorless. From K, there is basically no collection and wearing significance. Because diamonds will gradually turn yellow from K, when we choose diamonds, we should try to choose the color above H. Although I-J belongs to the category of near colorless, we can still detect a trace of yellowish. Colored diamond, such as red, pink, green and blue, is a treasure in diamonds, and its price is expensive. Among them, red diamonds are the most precious.
(2) Clarity: Clarity classification is based on the location, size and quantity of inclusions. The clarity grades are divided into FL, IF, VVS 1, VVS 2, VS 1, VS 2, SI 1, SI2, SI3 and P65438 from high to low.
(3-carat weight): When the other three C's are the same, the price of a diamond is directly proportional to the square of the weight, and the greater the weight, the higher the value. The weight of diamonds is measured in carats. 1 carat (carat) = 0.2g (gram). Divide one carat into 100 pieces, each piece is one point, and the 0.3 carat and 0.4 carat marked on the price tag of the mall are what we call 30 points and 40 points.
(4) Cutting: A diamond's original stone will not be noticed even if it is thrown on the road. It is cutting that gives it a second life and gives it a gorgeous fire color. Cutting refers to the geometric shape and arrangement of various valve faces of finished bare diamonds. Cutting is divided into three categories: cutting ratio, grinding and decoration. Each item has five grades, from high to low, excellent, very, good, average and poor. Generally, what we see is the standard round drill cutting. Top-cut stones can reflect light in the most perfect proportion, which is what we call three EX (excellent) cuts, but the price of this cut will be a little more expensive, because its yield is relatively low, which will be about 5% higher than that of stones without three EX cuts, but the fire color of three EX cuts is absolutely the most beautiful.
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Then when you buy it, you usually need GIA certificate for loose diamonds and CMA certificate for finished diamond rings. By the way, besides normal 4C, it is also important to see if there is fluorescence.
If you want to save some money, I recommend you to buy it online. I have been in the same situation as you recently. I bought an F color online, cleanliness VS 1, cut ex, VG, VG. If you go to the mall to buy it, it's about 2W.
After you buy it, just go to your local jewelry appraisal center or the jewelry appraisal center in a nearby city for re-inspection.
Well, that's about it. I hope it helps you.
Good luck.