Citrine
Citrine is the transparent, pale yellow to brownish orange variety of quartz.
OVERVIEW
ABOUT CITRINE
Citrine is rare in nature. In the days before modern gemology, its tawny color caused it to be confused with topaz. Today, its attractive color, plus the durability and affordability it shares with most other quartzes, makes it the top-selling yellow-to-orange gem. In the contemporary market, citrine’s most popular shade is an earthy, deep, brownish or reddish orange.
BIRTHSTONES & ANNIVERSARIES
Along with topaz, citrine is birthstone for november. It’s also recognized as the gem that commemorates the thirteenth anniversary.
IRON
A trace of iron in citrine’s structure is responsible for its yellow-to-orange color.
HEAT
Natural citrine is rare. Most citrine on the market is the result of heat treatment of amethyst.
POPULAR
Citrine is recognized as one of the most popular and frequently purchased yellow gemstones.
FACTS
Mineral: Quartz
Chemical composition: SiO2
Color: Yellow to orange to orangy red
Refractive index: 1.544 to 1.553
Specific gravity: 2.66 (+0.03/-0.02)
Mohs hardness: 7
TREATMENTS
There are a number of processes used to alter the color, apparent clarity, or improve the durability of gems.
SYNTHETICS
Some gemstones have synthetic counterparts that have essentially the same chemical, physical, and optical properties, but are grown by man in a laboratory.
IMITATIONS
Any gem can be imitated—sometimes by manmade materials or by natural materials chosen by man to impersonate a particular gem.
WHY WE LOVE THIS GEMSTONE
1
Affordable
Even fine citrine has a modest price tag. Large gems remain affordable, as price per carat does not rise dramatically for larger sizes.
2
Giant hollow crystal-lined amethyst geodes from areas like Brazil are often heated to become giant citrine “cathedrals.”
3
Ametrine
In Bolivia, amethyst and citrine colors can occur together in the same crystal. These unique gems are called ametrine.
QUALITY FACTORS
The following factors combine to determine a citrine’s value.
COLOR
CLARITY
CUT
CARAT WEIGHT
CITRINE QUALITY FACTORS: THE COMPREHENSIVE GUIDE
REASEARCH
Explore sources, gemological research, and the role of gems in history.
