14K white gold. 0.60 Carat diamonds VS clarity and G color. Round brilliant cut diamonds. 0.40 CT blue sapphire. Sublime color and intensity. All gemstones are 100% natural earth mined and genuine. Very beautiful studs. Beautiful blue sapphire and diamond studs. Collectible ladies fine jewelry gemstone earrings. Excellent jewelry to gift at engagements, weddings, anniversaries, bridal, thanksgiving, Christmas, new years, valentines day, mothers day, Easter, Birthdays, Bar Mitzvahs, Bat Mitzvahs, Sweet Sixteen parties, celebrating a job, promotion, move, or a thank you. Truly a value enhancing piece, that will grow value in coming years.