Necklace is a reversible Omega chain made of 14K white and 14K yellow gold 

Origin: Oregon
Gem Type: Sunstone
Color: Deep Red
Shape: Oval
Cut: Standard
Size (mm): 14.5x12x8.5
Weight (ct): 8.9
Grade*: AAA
Clarity**: VVS
Lustre: Vitreous
MOHS Hardness: 6.5-7/7
Treatment: Non-treated
Metal: 14K Yellow and White gold Necklace, 14K White gold pendant
GbG ID: S666PKP

To learn more about Sunstone Grading System