First, naming standards

Naming principle of jewelry: refer to GB11887-2012 (taking diamond ring as an example).

Platinum: Platinum Gold: 18K

Usually, the label will indicate: For example

Gold: 4.5g Gemstones: 2 carats with 0.5 carat diamonds.

Second, the resolution name

5CT means 5 carats 1 carat = 0.2g.

(It is usually called 5 calories, which is already very big, and it is basically a million-level. Tens of millions of high-quality 5 cards are normal. )

D5ct refers to the 5-carat main diamond, and the main diamond refers to the weight of the main matching diamond in the ring.

(luxury diamond style, there will be many small diamonds in the design to set off the fire color of diamonds or reflect luxury. Whether to match small diamonds is the designer's personal characteristics and the landlord's personal preference.

DC5ct refers to the total weight of diamonds, including the total weight of main diamonds and matched small diamonds.

That is, the answer to the landlord's question is: DC5 carats means that the total weight of diamonds used in platinum is 5 carats.

(Because the landlord didn't say whether it was a diamond ring, although most of them were diamonds, colorful treasures would also have such marks. )

Guess there is a mark on the inner ring of the landlord's ring, which reads: brand name (abbreviation) PT950 Dc 5ct.

Extra note: D5ct and DC5ct are not the same concept, please pay attention to the landlord. The prices of the two may be quite different.