GIA's Gubelin Gem Project: Garnet

Often thought of as a deep red gemstone, garnet can also be yellow, orange, green or brown – any color except blue. There are six common garnet minerals – almandine, andradite, grossular, pyrope, spessartine and uvarovite – and several rare species. Gem varieties include green demantoid and tsavorite, orangy red hessonite and pink/red rhodolite. Besides brilliance and attractive colors, garnets sometimes exhibit optical phenomena such as asterism (a star-shaped pattern of reflections), chatoyancy (a “cat’s-eye” seen in reflected light), or a color change when viewed under different types of lighting.

 

33197 18.34 ct Garnet (Almandine - Spessartine)  Czech Republic (PDF)	33222 12.86 ct Garnet (Almandine - Spessartine) India (PDF)	33308 2.10 ct Garnet (Andradite) Korea (PDF)
33282 16.02 ct Garnet (Andradite) South Africa (PDF)	35637 1.67 ct Garnet (Andradite) - Demantoid Iran (PDF)	33307 4.12 ct Garnet (Andradite) - Demantoid Italy (PDF)
33303 4.24 ct Garnet (Andradite) - Demantoid Locality not stated (PDF)	33301 4.31 ct Garnet (Andradite) - Demantoid Locality not stated (PDF)	33300 5.22 ct Garnet (Andradite)  - Demantoid Locality not stated (PDF)
33223 3.59 ct Garnet (Grossular) Mali (PDF)	33265 6.57 ct Garnet (Grossular) Tanzania (PDF)	33242 11.04 ct Garnet (Grossular) Tanzania (PDF)
34991 14.54 ct Garnet (Grossular) Tanzania (PDF)	33239 16.95 ct Garnet (Grossular) Tanzania (PDF)	33298 10.99 ct Garnet (Grossular) - Hessonite Sri Lanka (PDF)
33299 12.36 ct Garnet (Grossular) - Hessonite Sri Lanka (PDF)	33293 14.18 ct Garnet (Grossular) - Hessonite Sri Lanka (PDF)	33292 16.99 ct Garnet (Grossular) - Hessonite Sri Lanka (PDF)
33281 23.86 ct Garnet (Grossular) - Hessonite Sri Lanka (PDF)	34842 25.65 ct Garnet (Grossular) - Hessonite Sri Lanka (PDF)	35007 6.96 ct Garnet (Grossular) - Hessonite Tanzania (PDF)
34358 1.75 ct Garnet (Grossular) - Tsavorite Kenya (PDF)	35569 3.65 ct Garnet (Grossular) - Tsavorite Tanzania (PDF)	33229 3.87 ct Garnet (Pyrope) Tanzania (PDF)
33278 9.22 ct Garnet (Pyrope) Tanzania (PDF)	33313 11.45 ct Garnet (Pyrope) Tanzania (PDF)	34395 12.22 ct Garnet (Pyrope - Almandine) Madagascar (PDF)
34542 10.24 ct Garnet (Pyrope - Almandine) Myanmar (PDF)	34841 8.14 ct Garnet (Pyrope - Almandine) Sri Lanka (PDF)	34769 19.12 ct Garnet (Pyrope - Almandine) Sri Lanka (PDF)
34759 30.60 ct Garnet (Pyrope - Almandine) Sri Lanka (PDF)	33201 11.42 ct Garnet (Pyrope - Almandine) Tanzania (PDF)	35213 14.55 ct Garnet (Pyrope - Almandine) United States (PDF)
33459 1.92 ct Garnet (Pyrope - Almandine) - Rhodolite Tanzania (PDF)	33461 2.54 ct Garnet (Pyrope - Almandine) - Rhodolite Tanzania (PDF)	33206 4.43 ct Garnet (Pyrope - Almandine) - Rhodolite Tanzania (PDF)
33199 18.88 ct Garnet (Pyrope - Almandine) - Rhodolite Sri Lanka (PDF)	35021 14.38 ct Garnet (Pyrope - Almandine) - Rhodolite Tanzania (PDF)	33198 18.53 ct Garnet (Pyrope - Almandine) - Rhodolite Tanzania (PDF)
34387 44.28 ct Garnet (Pyrope - Spessartine) Madagascar (PDF)	35068 13.80 ct Garnet (Pyrope - Spessartine) Tanzania (PDF)	34338 14.57 ct Garnet (Spessartine) Kenya (PDF)
34719 7.42 ct Garnet (Spessartine) Namibia (PDF)	33251 11.29 ct Garnet (Spessartine) Nigeria (PDF)	33249 5.13 ct Garnet (Spessartine) Sri Lanka (PDF)
34844 9.81 ct Garnet (Spessartine) Sri Lanka (PDF)	34899 13.07 ct Garnet (Spessartine) Sri Lanka (PDF)	35227 7.94 ct Garnet (Spessartine) United States (PDF)