Alphabetical Gemstone List
Click on a letter for a list of gems:
A| B| C| D| E| F| G| H| I| J| K| L| M| N| O| P| Q| R| S| T|U| V| W| X|Y |Z

Gemstones that begin with the letter "D"

Gemstone	Crystal System	Density	Hardness	Refractive index	Treatments
Danburite	orthorhombic	3.00	7.0	1630-1.636	none known
Datolite	monoclinic	2.95	5.0-5.5	1.626-1.670	none known
Demantoid	cubic	3.84	6.5-7.0	1.875	none known
Diamond	cubic	3.52	10	2.417	radiation, drilling, fracture filling
Diopside	monoclinic	3.29	5-6	1.675-1.701	none known
Dioptase	trigonal	3.30	5	1.675-1.708	none known