I just received these and while they are beautiful I do question the authenticity since no certificate arrived and it arrived in similar packaging to cheaper alternatives. I really doubt this is authentic moisanitte and sterling silver.These are absolutely stunning on. I just tried them on and walked out into the sunlight to see the sparkle and I was blown away by their brilliance!The packaging/certificate of authenticity alone is quite impressive! These are great for giftgiving or keeping for yourself, male or female. You will not be disappointed. Quality quality quality! I’m so happy with this purchase I don’t think I would ever buy another diamond. So impressed with this company. They are a class act!Will definitely be ordering more from them. I can’t wait to wear these to a special occasion very soon!I wanted high quality "diamond" studs, which actually seem hard to find unless you get real diamonds. These actually fit the bill though. Screw on backs that don't fall off make them great for continuous wear without worrying about them falling out. They look believable as real diamonds too, as long as you get a smaller carat weight.For all my diamond lovers I get it we love the bling, the fire, the brilliance of a diamond. I bought these earings because a friend of mind just got engaged and told me about her mossianite engagement ring. Her pictures are stunning. So I picked up a pair of these mossianite stud earings and I am quiet impressed. I matched the earrings against my diamond engagement ring and a pair of cubic zirconia earings. To my surprise the diamond and mossianite are identical to the naked eye. Great value comes with authentication card and certificate. Bling on.I have a pair of real diamonds and a second hole, I wanted a smaller earring for the 2nd.. you can not tell they are not the real deal... AmazingShine and screw backI was pleasantly surprised by these earrings. They are sparkly and beautiful. I love the screwbacks. They fit securely and are comfortable. I am surprised by the price of the moissanite. A lot of moissanite brands are more expensive. I am hoping the earrings stay this beautiful. I am a little skeptical because of the reasonable price. I guess time will tell. I plan on wearing them everyday in my second piercing.The earrings were too large