The website of Kari Pearls - - reports of another large blister pearl, still attached to one of the valves of the giant clam Tridacna gigas. The pear...
Another famous blister pearl discovered from the giant clam Tridacna gigas, also from the coral reefs off the coast of the Island of Palawan in the Ph...
The NMNH's webpage in its Gem Gallery on the Logan Sapphire (Catalog No. G3703), reveals a very significant fact about the "Logan Blue Sapphire" not i...
Sri Lankan Sapphires are lighter and brighter than the Kashmir and Burmese Sapphires. These sapphires are generally a saturated medium blue in color a...
Having followed the discussion on the Logan Blue Sapphire so far, I thought it would be appropriate and useful for the ongoing discussion, if I upload...
Compared to the weight of Pearl of Allah/Pearl of Lao Tzu (6.1 kg), even if we deduct 5 kg for the weight of the shell/valve, a weight of 20 kg for th...
Another obituary that appeared in the New York Times of March 16, 1994, essentially gives the same details as in the Washington Post obituary, but giv...
Thanks John for your update on the different facets of the life of Mrs. John A. Logan, a remarkable lady, whose efforts touched the lives of many Amer...
Congressional Records : March 24, 1994 From the Washington Post, Mar. 15, 1994Polly Guggenheim Logan Dies; Art Patron, Washington Hostess (By Bart Ba...
I have read with great interest your thread on the Logan Blue Sapphire, and the original webpage on the Logan Blue sapphire in the jewelry blog of int...
The third and most important contribution was made by Mrs. Beverly Pollard Page, mother of Jennifer Page, and niece to Mrs. John A. Logan. Beverly Po...
The second contribution to our webpage was by Mrs. Alice Payne, who had the privilege of working for Mrs. John A. Logan as her personal accountant fro...
Hello Tentate,I have studied the images you uploaded relevant to the question you have raised, after enlarging the photos using XnView. As you have su...
Hello "tentate", Welcome to our forums!!!! We will take a closer look at the photos and answer your post within 24 hours. Meanwhile please join our...