emerald
Emerald is the birthstone for May. It is a rich green beryl. A precious gemstone that is very valuable. The clearest stones with the richest color are the most valuable.
That said, emerald is often enhanced by filling the the flaws in it with a green colored oil. A common practice in the industry, meant to improve the clarity and color of emeralds. That is why emeralds should not by cleaned with ultra sonic cleaners, or with hot soapy water, as that would remove the oil, making the emerald look less appealing.
Mirror mirror on the wall. What's the cheapest of them all? emerald?
Sounds wierd. Anyway, these are the cheapest trinklets around.

Emerald Channel Set Band
Your Price $6.99

Opaque Light Emerald Gemstone Pendant
Your Price $6.99
Most Discounts
Steepest jewelry discounts.
Sim. Emerald Necklace 24"
Retail Price $39.99
Your Price $9.99
Your Discount 75.05%

Created Emerald and Stainless Steel Princess Cut Rings
Retail Price $100.00
Your Price $24.95
Your Discount 75.05%

Stainless Steel Created Emerald Rings Band, Jewelry
Retail Price $100.00
Your Price $24.95
Your Discount 75.05%
Most $$$ Savings.
Get the most bang for the buck..

14k Rose (Pink) & White Gold Genuine Diamond & Emerald Drop Earrings
Retail Price $5200.00
Your Price $1490.00
You save $3710.00