I think it might mean the size.
645998
More than likely, the 12 stamped in your ring means that it is 12 karat gold.
The marking "dia 025" on a gold diamond ring typically indicates the presence of a diamond weighing 0.25 carats (or 1/4 carat). The "dia" abbreviation stands for diamond, while "025" specifies the carat weight. This marking helps convey the size and value of the diamond in the ring, providing important information for potential buyers or appraisers.
6 is the number of the great Lucifer in christian scriptures.
It is the weight usually or it's the code number of the company
14KN stamped on the inside of a diamond ring typically means that the ring is made of 14 karat gold with the "N" indicating that it is a natural gold alloy. This stamp signifies the purity of the gold used in the ring.
Karats
DC stands for Diamond Cut.
It could mean gold electroplated with 10K gold. And, if the band is plated, the stone is not a diamond.
10k 512 means, you have a 10k gold ring with 5.12carat's total gem weight.
the PG stands for Plated Gold - meaning the ring is not pure 14kt gold but made of another metal overlayed with 14kt gold
Because it's not a diamond. Diamond rings are set in gold or silver which are stamped with purity hallmarks.
645998
Heavy Gold Filled..
I have a very old gold colored ring with a clear stone that has fs 4 k inside? what does that mean? what could the stone be? It is not a diamond but the Gold is real and looks like my 14 k ring..
In a ring, the "10k" symbol indicates that the metal is 10 karat gold, meaning it contains 41.7% pure gold mixed with other metals for durability. The diamond symbol typically signifies that the ring includes a diamond or diamond-like material. The "mw3" could refer to the manufacturer's mark or a specific model or design number, although its exact meaning may vary depending on the maker.
its only 18k gold plated, not full gold This could be incorrect. If the ring has 18K/PLAT then the ring is 18K gold with some platinum. Probably to hold the diamond.