The diamonds are J-K color i1 color and clarity averages. All are eye clean and very brilliant diamonds!  Natural not treated  Approximately 1.3CT Center Diamond and  the outer diamonds are .15 carats each. Marked 14K Has been cleaned and polished a looks like new. Luxury Cubic Zirconia Diamond Necklace With Brilliant Cut, Luxury Diamond Tennis Necklace With Brilliant Cut, Luxury Diamond Necklace With 17 Jewels, Luxury Diamond White Crystal Necklace, Classic Brilliant Cut Crystal Diamond Necklace, Classic Crystal Diamond Necklace With Brilliant Cut, Luxury Diamond Cut Diamond Necklace, Brilliant Cut Crystal Diamond Necklace, Luxury Moissanite Round Cut Necklace