What does it mean to write do30ct on the ring?

The correct is D030CT.
D is the abbreviation of Diamond, which means diamonds.
030CT represents the weight of the diamond. CT is the abbreviation of CARAT, which means carat, that is, the weight of the diamond is 0.30 carats, 1 carat = 100 points, that is, the diamond weight is 30 points.
The carat (CT) is the quality (weight) unit of gems, and 1 carat is currently equal to 0.2 grams or 200 mg. One carat is divided into 100 points, such as 50 points, which is 0.5 carats, to calculate a small gem. Because the density of gems is basically the same, the heavier gems, the larger.
Pucting data
This Diamond ring tips:
. Verify the merchant, determine the certificate
buying such expensive things on the Internet (Business license and tax registration) Use the webmaster tool to check whether the domain name is filing and whether the filing name is consistent with the company name, but also allows merchants to provide a diamond appraisal certificate, such as the international certificate GIA/HRD/AGS/IGI/EGL, domestic certificate NGGC/ NGTC/NGDTC.
. The goods are not suffering than the three houses. There must be one suitable for
. As the saying goes: not afraid of not knowing the goods, you are afraid of the goods. Look at it, Dobby, there is no harm, but the prerequisite is to see the quality of diamonds and the workmanship of jewelry. The price of diamonds is relatively stable and transparent. A better way is to investigate at jewelry wholesale places, or ask people who know.
. Choose a diamond ring that suits you according to your age
. For young people, according to your own spending power, you choose a low -priced and novel diamond ornament as the starting point. With the increase of age and economic strength, you can choose larger diamonds and mature styles.
30 years old, if you wear a little diamond ring, it is not appropriate, just like a small house placing a small lamp, the light is difficult to perform. Choose according to your age and identity, you will make the diamond jewelry complement you.
. The professional terms when you buy are not separated, you will not be stubborn
The basic knowledge of diamonds before buying, and ask experts and friends.
This to buy diamond rings, the first thing to choose is diamonds. Under the condition of conditions permit, large -weight, high -quality diamonds are naturally the first choice for investment preservation. Theoretically, the higher the diamond 4C, the better, but the requirements for clarity and color can be relatively low, but the 3EX is perfectly cut to ensure that it is an important condition for preservation. In the inlaid method, try to choose a ring inlaid with claws.
6. Selection of diamond ring trarta
The diamond ring generally uses 18K gold or platinum rings, while the platinum itself is a rare metal. With the continuous rise in market prices in platinum, platinum is the first choice for collecting and investment. Gold has monetary attributes, giving gold a value -preserving function. From the perspective of value preservation and value -added, choosing gold jewelry is the most secure way.
but the gold material is not suitable for maintenance, and the gold ring supports is not good. It is not matched with diamonds. Platinum is a rare metal than gold. It is also the most suitable material inlaid with diamonds. The abrasion resistance, high temperature resistance, corrosion resistance, and the nature is very stable, so it will not fade, discolor or yellow. Considering the diamond appreciation and preservation ability, it is reasonable to choose platinum.
7. Move in time, changing the tricks
When your identity, environment and aesthetic views have changed, some service measures that many jewelry shops already can allow you to use a small amount of cost to change to replacement. The purpose of jewelry. For example, change to small, corresponding to the previous method. Depending on the change of age, it is feasible to exchange the larger diamond jewelry that is more suitable for you. Pay attention to the dilling jewelry that usually cherishes yourself.
It, the re -inlay is also a good idea. Diamond is the main value of diamond jewelry. If you change it, you can get a new diamond jewelry. The business is launched, but only for its members.
8. For the quality assurance and after -sales service card
This can consider purchasing after understanding the credibility of the merchant. Reflection, maintenance and other work, complete after -sales service is essential. This is also an important factor that you need to consider when you choose a merchant.
Reference materials: Baidu Encyclopedia-Diamond Ring

Pt is a platinum bar. That seems to be a diamond logo

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