What carat can I get with my requirement below?

Budget: Around 20,000
Clarity: VVS or VS
Color: D-G
Cut: Round
3EX

Btw, what exactly is the meaning of Girdle.

sam

hi,

你好!你參考下,已包18K戒指托,

CERT GIA
CARAT 0.52
COLOUR E
CLARITY VVS1
CUT EX
PO EX
SYM EX
FLU N
$19600

CERT GIA
CARAT 0.50
COLOUR F
CLARITY VVS1
CUT EX
PO EX
SYM EX
FLU N
$17800

CERT GIA
CARAT 0.50
COLOUR F
CLARITY VS1
CUT EX
PO EX
SYM EX
FLU N
$14800

CERT GIA
CARAT 0.51
COLOUR E
CLARITY VVS1
CUT EX
PO EX
SYM EX
FLU N
$14000

有興可約時間看貨23575918

THX

SAM