Anniversary Diamond
| Cut | Pear Shape |
| Weight after Cut | 65 Carats |
| Weight Before Cut | 200 Carats |
| Founded at | South Africa |
| Present Owner | Canadian |
Anniversary Diamond is one the historical precious diamond. The weight of this magnificent diamond is 65 Carats in weight. Its origin is from South Africa. The rough diamond was founded at South Africa and the weight was approximately 200 Carats. The present owner of this magnificent historical Anniversary diamond is Canadian National.
Amsterdam Black Diamond
| Cut | Pear Shaped |
| Weight After Cut | 33.74 Carats |
| Weight Before Cut | 55.85 Carats |
| Founded At | Unknown |
This magnificent historical precious diamond is also known as the Amsterdam Diamond. Rough Amsterdam Black Diamond was 55.85 Carats, It was cut in a pear shaped. The weight of Amsterdam Black Diamond is 55.85 Carats. Amsterdam Black diamond was exhibited on the 700th anniversary of the City of Amsterdam in 1975.
Amiti Diamond
| Weight | 31 Carats |
| Cut | Unknown |
| Founded at | Unknown |
| Present Location | Unknown |
| Former Owner | Mrs. N. Coffin |
This magnificent historical diamond is 31 Carats. Amiti Diamond was owned by Mrs. N from Bedford, Massachusetts, United States of America. Coffin. Amiti diamond is named after her girl Amiti. Unfortunately this magnificent historical diamond is stolen and the present whereabouts of the diamond is unknown.
Amati Diamond
| Color | Unknown |
| Founded at | Unknown |
| Weight | 31 Carats |
| Present Owner | Unknown |
| Present Location | Unknown |
| Former Owner | Mrs. N. Coffin |
| Weight before Cut | Unknown |
Amati Diamond is 32 Carats. The location from which this magnificent diamond was founded is unknown. Amati Diamond belonged to Mrs M. Coffin but it was stolen in 1949. The present whereabout of this historical diamond is unknown.