Logan Sapphire (NMNH G3703) | Smithsonian National Museum of Natural History

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Logan Sapphire. A cushion-mixed-cut, medium-blue sapphire pendant. Described as "pendant/brooch mounted in gold and platinum with 20 colorless modified round brilliant diamonds (approx. 16 ct)." [AUTO]

Photograph of the Logan sapphire (NMNH G3703) with soft mirror

Photograph of the Logan sapphire (NMNH G3703) with mirror

Photograph of the Logan sapphire (NMNH G3703)

Photograph of the Logan sapphire (NMNH G3703) with soft mirror

Photograph of the unmounted Logan sapphire (NMNH G3703)

Logan Sapphire. Cushion mixed-cut medium blue corundum (var. sapphire) (423 ct) in a pendant. Lot described as "pendant/brooch mounted in gold and platinum with 20 colorless modified round brilliant diamonds (approx. 16 ct).." [AUTO]

Logan Sapphire. Cushion mixed-cut medium blue corundum (var. sapphire) (423 ct) in a pendant. Lot described as "pendant/brooch mounted in gold and platinum with 20 colorless modified round brilliant diamonds (approx. 16 ct).." [AUTO]

Logan Sapphire. Cushion mixed-cut medium blue corundum (var. sapphire) (423 ct) in a pendant. Lot described as "pendant/brooch mounted in gold and platinum with 20 colorless modified round brilliant diamonds (approx. 16 ct).." [AUTO]

Logan Sapphire. Cushion mixed-cut medium blue corundum (var. sapphire) (423 ct) in a pendant. Lot described as "pendant/brooch mounted in gold and platinum with 20 colorless modified round brilliant diamonds (approx. 16 ct).." [AUTO]

Logan Sapphire. Cushion mixed-cut medium blue corundum (var. sapphire) (423 ct) in a pendant. Lot described as "pendant/brooch mounted in gold and platinum with 20 colorless modified round brilliant diamonds (approx. 16 ct).." [AUTO]

Logan Sapphire. Cushion mixed-cut medium blue corundum (var. sapphire) (423 ct) in a pendant. Lot described as "pendant/brooch mounted in gold and platinum with 20 colorless modified round brilliant diamonds (approx. 16 ct).." [AUTO]

Sapphire jewelry from the National Gem Collection at the Smithsonian Institution National Museum of Natural History in Washington, D.C., on display in the Gem Gallery of the museum's Janet Annenberg Hooker Hall of Geology, Gems, and Minerals. Left to right: Catalog number NMNH G8044, the Hall Sapphire Necklace. Gift of Mrs. Evelyn Annenberg Hall in 1979. Catalog number NMNH G4753, the Bismarck Sapphire Necklace. Gift of Countess Mona von Bismarck in 1967. Catalog number NMNH G3703, the Logan Sapphire. Gift of Mrs. John A. Logan in 1960. Catalog record EZIDs: http://n2t.net/ark:/65665/34854c3cd-3de6-48fd-b455-b807ac9e45ca http://n2t.net/ark:/65665/3c8843850-1c7b-4f08-808e-3582efce7aa0 http://n2t.net/ark:/65665/3f5553dc9-4803-47c8-9c62-4aa621995b57

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Taxon:: Corundum (var. sapphire) - Primary Gem

Record Last Modified:: 17 Sep 2024
Specimen Count:: 1

Other Numbers:: IGSN ID : 10.58151/NHB002JNB
USNM Number:: NMNH G3703-00

Color:: Medium Blue
Cut:: Cushion Mixed
Jewelery Type:: Pendant
Weight:: 423 ct

Place:: Sri Lanka, Asia

See more items in:: Mineral Sciences; Gems; NMNH - Mineral Sciences Dept.

Record ID:: nmnhmineralsciences_1001402

GUID (Link to Original Record):: http://n2t.net/ark:/65665/3f5553dc9-4803-47c8-9c62-4aa621995b57