Neon Blue Natural Madagascar Aquamarine 3.45 ctsHey Loungers, What do you think of this hypnotic blue natural aquamarine? She features the best of what Madagascar has to offer when it comes to gems! Purity of crystal, sweet and enchanting color and, but that's our little secret, a superb cut! Get yours before its too late! More information about this Aquamarine: Measurements: 9. 22 x 9. 16 x 6. 63 mm Treatment: None Origin: Madagascar Color: Blue Crystal: Transparent Cut: Antique Cushion Weight: 3.