A great emerald hanging from a dragon skin chain

Description:	Ahhh, thats all you can say as you gaze into this emerald. Its beauty is unmatched! This most be the largest emerald in the world. The most amazing thing about the emerald is that now and then it turns black as the night, losing its sparkle. However, as soon as you blink, it emits a green light blast and sparkles once more!
Armour type:	Necklace
Stats:	+6 con
It looks	Very light weight (0.095 kg)
Sacvalue:	274-286k
It is called	great emerald necklace and identified as 'necklace', 'dragon skin chain', 'skin chain', 'chain' and 'great emerald'.
It takes the following slot:	Neck
Made of:	emerald
Size:	extremely small
Quality:	shoddy
From:	Hera, Castle Brantis