From Bismuth's page:
"When Bismuth was asking about other Crystal Gems, she lists a few, one of which is named "Crazy Lace". This might be a reference to the character Aduba plays in the show above. At the same time, Crazy Lace is also a variety of agate."
From Garnet's page:
"Garnet may be based on the Hindu deity, Ardhanarishvara:
- Like the deity, Garnet is first depicted, chronologically as half-blue and half-red. They also share the third eye, which is located at the same place: the center of the forehead.
- The feminine half is to the left while the right is masculine, this is shown through the locations of Ruby and Sapphire's gemstones.
- Like Garnet, Ardhanarishvara was made through the love of two beings (Shiva & Parvati). They were so in love that they never wanted to be two separate beings ever again.
- They are also depicted as the union between opposites. In Garnet's case, she balances Ruby's active and fiery behavior with Sapphire's cold and passive attitude."
Forgive me if I'm wrong, but none of this information was "confirmed" by the Crew, a VA, or anyone really - it's just as much "speculation" as the name information of Lars and his parents.