The shell bone script of character Jade Tablet is
Which is the drawing of the ancient Jade Tablet used by Kings in sacrifice.
The bronze script of the character is
The two 土 should be connected, the casting technique was not good, causing the problem. Anyway, it is simplified drawing of the Jade Tablet.
The big seal script of the character is
The small seal script of the character is
similar to the old scripts.
The clerical script of the character is
The song typeface of the character is
very similar to or same as old scripts.
Its Pinyin is Gui1.
Please note that 圭 is an entirety, not two 土 (Soil) over another.
The character is rarely used alone right now, but it is widely exist as part of many characters. It is important to understand its meaning.