MEXICAN FIRE OPAL RING, NICKEL FREE .925 STERLING SILVER, SIZE 5.75, 3.33 CTS - OPAL IS BEZEL SET - NEW!

- Ring is Precious Nickel Free .925 Sterling Silver

- Gemstone is 100% Natural - Mined in Jalisco Mexico

- 1 contra luz variety of Mexican opal, Size 12 x 11 x 6 mm, Weighs 3.33 CTS

- Opal is the Traditional Birthstone for the Month of October

- Size 5.75
The overall weigh is 4.4 grams.
More Information -
Treated/Untreated: Untreated.

PLEASE NOTE: With the contra luz variety of Mexican opal the internal rainbow colored fire is best viewed in transmitted light ( light entering stone from behind), rather than reflected light ( light shinning on stone from in front) and although with some stones of this variety rainbow fire may be visible in reflected light, the fire is NOT VISIBLE in ordinary lighting.

This stone will display nice internal rainbow colored fire when viewed with strong direct transmitted lighting, lightly visible in direct reflected lighting, but best viewed with light source entering stone from behind, such as from a ray of sunlight or even by holding stone up to an ordinary lamp light and moving stone back and forth. . Custom cut about 4 years ago from rough well seasoned and so very stable, stone approx. 12 x 11 mm. Valuable opal variety.

Photo taken with an ordinary digital camera with a ray of sunlight entering stone from behind at at a slight angle to best show fire. Color has not been enhanced - but note that rainbow fire is NOT VISIBLE in ordinary lighting.