The phrase "a certain gem" is correct and usable in written English.
It can be used when referring to a specific gem that is not named or when implying that the gem has particular qualities or significance.
Example: "In the jewelry store, I found a certain gem that caught my eye, sparkling beautifully under the lights."
Alternatives: "a particular gem" or "an exquisite gem".
Zeroing in on a certain gem-loving customer, this 12-piece collection features new versions of old classics like Pomellato's tango collection -- hoop earrings, chain-link bracelet and ring -- updated in pav?ubies (shown here) and their ever-popular dome earrings, in coral and emerald.
From 209 features shown this year, certain gems stand out.Im Kwon Taek's "Chunhyang" is a feast for both the ears and for the eyes.
GSV allows us to see not only photos of certain gems on the planet, but provides new perspectives that only its cameras can capture.
There aren't any rules for how to store jewelry (apart from certain gems needing special care), so feel free to create storage items out of almost anything.
Rather, just a few little "plus" signs next to the items that are purchasable with gems, which will then take you into a very streamlined store interface that tells you exactly what you're getting for a certain number of gems.
This is indicated by two lines of evidence: tumors arise in GEM after a certain latency period; and, despite a widespread expression of the oncogene throughout the entire gland, tumors arise as focal lesions, suggesting that multiple genetic alterations have to occur to promote neoplastic transformation in transgenic models.
"It's a gem, it characterizes a certain side of Henri, it is just perfection, you realize he was a painter".
This achievement is awarded after you win a certain number of trophies from multiplayer battles, and gives you almost enough gems to purchase the third Builder's Hut.
Enemy monsters can change gems on the board to skulls, which cause damage to the player if they are not lined up within a certain number of moves.
Certain note gems, when using a drum controller that is velocity-sensitive, are "armored", requiring the player to hit the indicated drum pad harder to score more points.
While increased oxidative stress resistance alone is unlikely to be sufficient to increase longevity, it may be associated with an array of changes that together increase lifespan in certain settings (Gems & Doonan, 2009; Van Raamsdonk & Hekimi, 2009; Yang & Hekimi, 2010; Shore et al., 2012).
