The different colors of topaz have their own unique subtleties for the value factors. Imperial colors, blue colors and yellow colors must be evaluated according to their own criteria.
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What To Look For
Red is one of the most sought-after topaz colors and represents less than one-half of 1 percent of facet-grade material found. The color the trade calls imperial topaz is highly prized and very rare. Many dealers insist that a stone must show a reddish pleochroic color to be called imperial topaz.
Faceted blue topaz is almost always free of eye visible inclusions. Other more rare colors like imperial and pink may show inclusions more often and still be valuable due to the color’s rarity.
Topaz is cut in a wide variety of shapes and cutting styles. Production includes all the standard gem shapes such as ovals, pears, rounds, emerald cuts, cushion cuts, triangle cuts, and marquise shapes, as well as designer-inspired fantasy shapes.
Standard topaz cuts for the jewelry industry include a wide range of shapes, sizes and weights. Blue topaz rises very little in per carat price as the size increases. Imperial topaz on the other hand rises in per carat price dramatically as size increases.
Topaz Quality Factors: The Comprehensive Guide
Tips & Advice
1. Think beyond blue.
Although blue topaz is the most common color you’ll see, thanks to a treatment that creates the color, topaz comes in beautiful pinks, reds, oranges, yellows and browns too.
2. Supply and prices are different for blue topaz and Imperial topaz.
Blue topaz and colorless topaz are very affordable and widely available. Red, pink and orange colors are rare and valuable. You’ll need to find a jeweler who has gemological knowledge and expertise to see fine qualities in these rarer colors.
3. Don’t confuse topaz and “topaz quartz” and “smoky topaz.”
When yellow citrine quartz was first discovered, miners called it “topaz quartz.” Topaz is usually more valuable than citrine in a similar color and also occurs in more saturated tones. Sometimes brown quartz is mistakenly called “smoky topaz.”