38 BULLETIN 118, UNITED STATES NATIONAL MUSEUM. 



Step-brilliant, elliptical girdle; colorless, with blue blotches; 0.749 carat; 



6 by 5 by 3.5 mm. Isaac Lea collection No. 99 



Step-brilliant, rectangular girdle; green-blue; 0.733 carat; 6 by 5 by 3.5 



mm No. 133 



Step-brilliant, irregular oval girdle; violet-blue; 0.73 carat; 6 by 5 by 4 mm. 



Isaac Lea collection No. 105 



Step-brilliant, circular girdle; light blue; 0.735 carat; 5 by 4 mm. Isaac 



Lea collection No. 97 



Step-brilliant, elliptical girdle; pale blue; 0.72 carat; 6 by 5 by 4 mm. 



Isaac Lea collection No. 95 



Step-brilliant, elliptical girdle; deep blue; 0.717 carat; 6 by 5 by 3 mm. 



Isaac Lea collection No. 106 



Step-brilliant, oval girdle; violet-blue; 0.715 carat; 5.5 by 4 by 4 mm. 



Isaac Lea collection No. 51 



Step-brilliant, elliptical girdle; pale violet-blue; 0.7 carat; 6 by 4 by 4.5 



mm. Isaac Lea collection No. 108 



Step-brilliant, elliptical girdle; smoky blue; 0.68 carat; 5.7 by 5 by 3 mm. 



Isaac Lea collection No. 86 



Step-brilliant, elliptical girdle; deep blue; 0.68 carat; 6 by 4.5 by 3.25 mm. 



Isaac Lea collection No. 91 



Step-brilliant, elliptical-girdle; deep blue; 0.66 carat; 4.5 by 3 by 4.5 mm. 



Isaac Lea collection No. 124 



Step-brilliant, irregular oval girdle; smoky blue; 0.65 carat; 5 by 4 by 3.5 



mm. Isaac Lea collection No. 123 



Step-brilliant, rectangular girdle; pale blue; 0.64 carat; 6 by 5 by 3 mm. 



Isaac Lea collection No. 93 



Step-brilliant, elliptical girdle; blue; 0.588 carat; 5 by 4.5 by 3 mm. Isaac 



Lea collection No. 12 



Step-brilliant, elliptical girdle; light blue; 0.58 carat; 6 by 4.5 by 3 mm. 



Isaac Lea collection No. 103 



Step-brilliant, irregular oval girdle; deep blue; 0.569 carat; 5.5 by 5 by 3 



mm. Isaac Lea collection No. 107 



Step-brilliant, elliptical girdle; deep blue; 0.565 carat; 5 by 4.5 by 3.5 mm. 



Isaac Lea collection No. 110 



Step-brilliant, elliptical girdle; smoky blue; 0.56 carat; 5 by 4 by 3.5 mm. 



Isaac Lea collection No. 125 



Step-brilliant, rectangular girdle; smoky blue; 0.557 carat; 5.5 by 4 by 3 



mm. Isaac Lea collection No. 104 



Step-brilliant, circular girdle; colorless, with blue at girdle; 0.555 carat; 



5 by 3 mm. Isaac Lea collection No. 126 



Step-brilliant, elliptical girdle; colorless, with blue blotches; 0.505 carat; 



4.5 by 4 by 3 mm. Isaac Lea collection No. 116 



Step-brilliant, elliptical girdle; pale blue; 0.48 carat; 5 by 3.5 by 3 mm. 



Isaac Lea collection No. 115 



Step-brilliant, oval girdle; almost colorless, blue at girdle; 0.475 carat; 



4.5 by 4 by 3 mm. Isaac Lea collection No. 119 



Step-brilliant, ellipitical girdle; deep blue; 0.46 carat; 4.5 by 3.5 by 3 mm. 



Isaac Lea collection No. 127 



Step-brilliant, circular girdle; pale blue; 0.39 carat; 4 by 3 mm. Isaac 



Lea collection No. 121 



Step-brilliant, elliptical girdle; almost colorless, blue at girdle; 0.38 carat; 



4.5 by 3.5 by 2.5 mm. Isaac Lea collection No. 118 



Step-brilliant, circular girdle; almost colorless, blue at girdle; 0.36 carat; 



4 bv 2 mm. Isaac Lea collection No. 120 



