The 1990 Fleer baseball card set is considered one of the most iconic releases of the late 1980s and early 1990s. Featuring stars like Ken Griffey Jr., Nolan Ryan, Ozzie Smith and many more, the 1990 Fleer set contained plenty of highly sought after rookie cards and stars of the era. Several cards from the set have increased tremendously in value in the subsequent decades. Here are the 10 most valuable 1990 Fleer baseball cards based on PSA 10 Gem Mint condition:

Kirby Puckett (#170) – Around $500-1000
Kirby Puckett was one of the biggest stars in baseball throughout the late 1980s and 1990s for the Minnesota Twins. His 1990 Fleer card, featuring Puckett batting from the left side, remains quite popular with collectors. In high grade, his rookie card can fetch $500-1000 given his excellence both offensively and defensively as a 6-time All Star who led the Twins to 2 World Series titles.

Will Clark (#51) – $500-1000
Will Clark was one of the best power hitting first basemen of the late 80s/early 90s. His sweet left-handed swing made him a fan favorite on the San Francisco Giants. While not technically a rookie in 1990 Fleer, his card is still desirable given his consistency and elite stats during his career. High grade examples still sell for $500-1000 showing his lasting popularity.

Bobby Thigpen (#302) – $600-1500
Bobby Thigpen had one of the most dominant relief pitcher seasons ever in 1990 when he set the single season record with 57 saves for the Chicago White Sox. Not surprisingly, his 1990 Fleer rookie card skyrocketed in value given his unprecedented dominance that year. In Gem Mint, it can reach up to $1500 still reflecting his place in baseball history.

Chuck Finley (#192) – $800-2000
As one of the premier left-handed starters from the late 1980s through the 1990s, Chuck Finley had great success pitching for the California Angels. His smooth pitching motion and pinpoint control made him a fan favorite on the Angels. Though not his true rookie season, his 1990 Fleer card remains highly coveted by collectors and has sold for as much as $2000 in top grades.

Juan Gonzalez (#208) – $1000-3000
Juan Gonzalez burst onto the scene with the Texas Rangers in the late 1980s, showing prodigious power to all fields. In 1990, he finished 2nd in the MVP voting while smacking 29 home runs and 97 RBI. His 1990 Fleer rookie is one of the most iconic from the set and can sell for $1000-3000 for the sharp looking image of Gonzalez taking a big cut.

Cal Ripken Jr. (#166) – $1200-4000
As one of the greatest shortstops and iron men in baseball history, Cal Ripken Jr.’s 1990 Fleer card remains highly desirable even at a higher price point today. The stoic looking image of Ripken at the plate is synonymous with his consistency and reliability for the Baltimore Orioles. PSA 10 examples in high demand can reach prices up to $4000 in the current market.

Ken Griffey Jr. (#450) – $3000-6000
The 1990 Upper Deck Ken Griffey Jr. rookie card is the most famous and valuable card in the hobby. His 1990 Fleer card retains huge demand as well given its classic Griffey swinging shot. Even though not technically his true rookie either, high end copies still sell strongly from $3000-6000 showing Griffey’s enduring appeal to collectors from the late 80s/early 90s generation.

Kevin Maas (#340) – $4000-10000
Kevin Maas had one of the most hyped rookie seasons in baseball history in 1990 when he belted a rookie record 30 home runs for the New York Yankees. On the back of that monster season, his 1990 Fleer rookie became the hottest ticket in the set. Condition is everything, with PSA 10s reaching values up to $10000 due to Maas’ short-lived hype and small print run of high grade copies.

Frank Thomas (#274) – $6500-15000
Frank Thomas proved to be one of the most dominant hitters of the 1990s, winning back-to-back MVP awards right out of the gate. His imposing image standing in the box was perfectly captured in his 1990 Fleer rookie. High grades are very tricky to find, making PSA 10s very rare and valuable at $6500-15000 depending on auction demand and competition.

Nolan Ryan (#73) – $9000-25,000
At age 43 in 1990, Nolan Ryan was still overpowering hitters on a regular basis as one of baseball’s all-time legends and career leaders in strikeouts. His 1990 Fleer card showing “The Ryan Express” unleashing a heater is simply iconic. High grades fetch top dollar from serious Nolan Ryan PC collectors, with a PSA 10 recently topping $25,000 and setting the value ceiling for the 1980 set.

While not the highest overall print run set, the 1990 Fleer baseball set contains many career defining and rookie cards of all-time great players. Several in the list above like Griffey Jr., Ripken Jr., Ryan and Frank Thomas remain staples in the highest price guide sets. Condition is paramount, but even mid-grades still retain value 30 years later showing the legendary talent captured within the 1990 Fleer set. It stands as one of the most recognized vintage releases from the tail end of the junk wax era.