The most common and most likely answer to this crossword clue is the 7 letter word GIRASOL
I've seen this crossword clue in The Times
G
I
R
A
S
O
L
More clues leading to the result GIRASOL
- Gem maiden pockets while taking ring
- Overturn trunk containing exotic dress to reveal gem
- A girl’s wavering over old opal
- Gloria’s twinkling gem
- Gloria’s sporting fine opal
- Lass around when love gives gemstone
- Lass holding a very luminescent stone
- Lass pressing a very yellow flower
- Female swiping a very precious stone
Buddy explains!

The straight part
We know that "gem" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case gem = girasol.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does GIRASOL mean?
GIRASOL noun- A fire opal.