SPINEL: August Birthstone
Spinel was recently added as an August birthstone, sharing this month with peridot. It is also traditionally given as a 22nd wedding anniversary gift. The name “spinel” comes from the Latin word spina, which means thorn, in reference to the shape of spinel crystals. This second August birthstone comes in a wealth of colors: intense red, vibrant pink, orange, purple, violet, blue and bluish green.
WHERE IS SPINEL FOUND?
SPINEL QUALITY FACTORS
- COLOR. Some spinel colors are more rare and valuable than others. In general, red spinel is the most desirable, followed by fine cobalt-blue spinel, then by vibrant hot pink and vivid orange stones. Violet and bluish purple to purple, or lavender, stones tend to be less attractive, and less in demand than other, rarer colors.
Red spinel ranges from orangy red to purplish red, with pure red to slightly purplish red hues of medium to medium-dark tone considered the finest of all. A top-quality 5 carat red spinel might sell for around a tenth of the price of an equivalent-quality ruby, and pink spinel often sells for less than pink sapphire. While a blue spinel's hues range from violet blue through very slightly greenish blue. Most stones have low saturation, and the blue hues take on a distinctly grayish look. The best and most highly valued blue spinel colors parallel blue sapphire, with intense violet-blue to pure blue colors that are neither too dark nor too light.
- CLARITY. Spinel that has no inclusions visible to the eye is more valuable than spinel with inclusions that can be seen. The more visible any inclusions are, the more the value drops. Spinel can have some very beautiful inclusions that reflect the gem’s usual octahedral crystal growth though. Some even appear in groups that resemble human fingerprints.
- CUT. Spinel is cut in a variety of shapes and cutting styles. As with many colored stones, ovals and cushion shapes are very popular. Because of the scarcity of spinel on the market, most fine-quality rough is cut in non-standard sizes to save weight, instead of in standard industry sizes. The standard-cut, or calibrated, stones that are available tend to be mixed-cut ovals, usually in 6×4-mm and 7×5-mm sizes, suitable for center stones in rings. Commercial qualities are more commonly cut to standard sizes for jewelry.
- CARAT WEIGHT. Larger spinel sizes rise considerably in per-carat price. Availability drops and prices rise sharply for fine red, pink, and blue stones above five carats.
CARING FOR YOUR SPINEL JEWELRY
SPINEL JEWERLY IN BOCA RATON
Looking for a gift for someone that has a birthday in August? A piece of spinel jewelry would be a very unique and personal gift to give. Stop by Devon's Diamonds & Decor to find beautiful spinel jewelry in Boca Raton.