fivefingerslo : i have a navy blue short sleeve shirt with diamond things on the front. it hangs low so i need an undershirt. what color undershirt should i wear?

QUEUEREDYPE : Maybe a dark gray or even black

asdrjh536 : white, or match it to the domaond 'things'

yughkygsrlxh : I would match it with your shoes if you have black shoes,i woulg go with a black shirt or white shoes,i would wear white

aliefique : Navy blue, gray or white. You could even go with red stripes, they always look good with navy. Good luck!

Tevyemalm : white

roritriagma : White! :D

aniseeten : I just got engaged and I have some concerns about my ring. It is beautiful, and I love it, but I am still concerned whether its genuine or not because of where my fiancé purchased it. I have been looking a lot into diamond fluorescence and glowing under uv light. My ring does not. Does this mean my diamond is not real? I have read some articles that say this just means I have a higher quality diamond( on the certification it says I have a color f diamond, which is supposedly pretty high) whereas other articles say it could be a fake if it doesn't glow. I know it sounds like I'm being a snob, but I'm just worried my fiancé was scammed because I know he payed a lot of money for my ring and we are both very amateur when it comes to diamonds.

Byhopynep : No, fluorescence in diamonds is not indicative of either quality or genuineness. It's just a fact that some diamonds do and some don't. Among professional graders, fluorescence is frowned upon, as grading for color is slightly harder when the stone reacts to the light source. A disreputable jeweler might put a higher color grade on a fluorescent stone, just because it would appear higher under sunlight or tube fluorescent bulbs.

Here's the best demonstration I can think of. Go to a nice jeweler and pick out a large cluster ring. Test it with a UV light. Probably less than a third of the stone will glow brightly and about the same number not at all, yet under regular light, they all appear well matched for color and brilliance.

cntvnhbn : Feasson has a good answer from one jeweler's perspective...

If also depends on what you mean by "genuine"... Natural and man-made diamonds are both "real" diamond. You probably mean real diamond vs imitation diamond.

Most jewlers have an instrument they use to tell the difference between diamonds and imitation diamonds. The instrument measures thermal conductivity and diamond (whether it is natural or man-made) has very high thermal conductivity. Imitation diamonds, cubic zirconia for example, have much lower thermal conductivity.

You might want to consider a couple of things... 1) diamonds are not really as rare as you think. There is a single company that dominates the global diamond market for jewelry. There are industrial companies that produce man-made diamonds on a regular production basis. By agreement, these industrial manufacturers do not produce diamonds for the jewelry industry.
2) real diamonds come from many different sources including some Third World countries where the mining of diamonds is controlled by war lords who use the diamonds to buy weapons and to become rich. These war lords typically use slave labor. These are called Conflict or Blood Diamonds because they contribute to so much death and human suffering. Many (most?) jewelry companies can not tell you whether their diamonds are Blood Diamonds or not (they will, of course, tell you they are not even if they don't know).