its actually a high quality of a fake diamond its not like the cz it doesnt get yellow after time
The stone is worthless. The gold is worth the going rate.
A portion of it is. The first stamp, "14k", would indicate the purity of gold, that the ring is a solid material (verse a plated material) and the material is 58% gold. The stamp, "dq cz", is exclusive to QVC and a branding of their "Diamonique" product line consisting of cubic zirconia simulated diamond's and other synthetic gem's.
This most likely refers to the metal purity of the ring, with 925 indicating that it is sterling silver (92.5% pure silver) and DQ standing for "Diamond Quality." CZ typically means that the ring features cubic zirconia gemstones as opposed to real diamonds.
.cz was created in 1993.
SuperGlam DQ was created in 2009.
CZ stands for the company that made the ring. A "CZ" can also be cubic zircon that is a man made gem/diamond.
CZ-USA was created in 1997.
You will have to contact CZ
Given that P=R-C where P is profit, R revenue and C cost, it follows that marginal profit dP/dQ = dR/dQ-dC/dQ where P,R and C are all functions of the output Q. Maximizing profit means setting dP/dQ = 0. Then dR/dQ = dC/dq where dR/dQ and dC/dq are marginal revenue and marginal cost respectively.
cz rating ? well i do know that there are different quality cz's that rate in quality,such as would be for diamonds.
significance of abc-dq conversion