Rb is not a known indicator for the mineral diamond.
Rb is the symbol for the element, rubidium.
A ring marked with "925" means it is sterling silver. The "A" may indicate additional components or characteristics of the ring, but it does not necessarily mean the diamonds are real. To determine if the diamonds are real, you would need to have them professionally evaluated by a jeweler.
Each atom of Rubidium (Rb) has 37 protons.
The atomic radius of Sr (Strontium) is larger than that of Rb (Rubidium). This is because atomic radius generally increases down a group in the periodic table, and Sr is located below Rb in the same group.
Rb has lower electronegativity than Na. Electronegativity decreases as you move down a group in the periodic table, so Rb, which is located below Na in the periodic table, has lower electronegativity.
TW stands for the total weight of all the diamonds, expressed in carats.
1 is one carat, G is the color of the diamonds and rb is Rosy Blue, the makers mark.
RB as it is at this time
RB means random boner
Total Weight
Depending on the context -- the sentence or phrase where NR is used -- it may mean 'natural round'.
Retro diamonds are basically fake diamonds.
it means right back..
it stands for rubidium.
A charity silver
He swam in the sea of diamonds
Canada Diamonds intent is to provide consumers with a quality product at a lower price by cutting out the middle man. It is their intent to make diamonds more affordable.