Modern Shirt Stud 4.16 Sapphire & Diamonds in PlatinumThis set of four (4) shirt studs bring a classic tuxedo or suit to the next level. Simply slide them into button holes to add a bit of glamour to any occasion. Cast in platinum, these stones in these shirt studs are invisibly set meaning each stone is custom cut to fit next to another creating the illusion that they are not held in by anything. There are 4. 16 total carats of vibrant blue sapphire and 1. 33 total carats of diamonds, giving off a