CaratHunter
Plans
Cushion|Natural|GIA

0.51ct E SI2 Cushion Natural Diamond

GD • E/SI2 • GIA 1299073936

Certificate GIA 1299073936

Diamond specifications and retailer prices

From $1,509 NZD
$851 USD
As of October 28, 2026
Save $886 NZD (37%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,396 NZD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1299073936. Listed at 9 retailers as of October 28, 2026, with prices from $1,509 to $2,396, a $886 spread on the same certified stone. 77 Diamonds lists it at $2,396. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1299073936
Dimensions4.75 × 4.59 × 3.10 mm
L/W Ratio1.03
Culet sizeNone
Top View
4.75 mm4.59 mm0.51 ctE / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1299073936
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $2,396 NZD|Low: $1,509 NZD|High: $2,468 NZD|Avg: $1,855 NZD|+2.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6$1,509 NZD
Retailer 2$1,517 NZD
Retailer 5$1,574 NZD
Retailer 4$1,609 NZD
Retailer 7$1,751 NZD
Retailer 3$1,799 NZD
Retailer 8$1,934 NZD
Retailer 9$1,934 NZD
77 Diamonds$2,396 NZD
Retailer 10$2,468 NZD

36 data points across 10 retailers

9 retailers$1,509 NZD to $2,396 NZD

B
Cheapest Retailer
-
$1,509 NZD
$851 USD
B
Retailer 2
-
$1,574 NZD
$887 USD
View
B
Retailer 3
-
$1,609 NZD
$907 USD
View
B
Retailer 4
-
$1,751 NZD
$987 USD
View
B
Retailer 5
-
$1,799 NZD
$1,014 USD
View
B
Retailer 6
-
$1,934 NZD
$1,090 USD
View
B
Retailer 7
-
$1,934 NZD
$1,090 USD
View
B
Retailer 8
-
$2,005 NZD
$1,130 USD
View
Most Expensive
C
77 Diamonds
CUSZBKWDVSAU · Oct 30
$2,396 NZD
£1,063 GBP
View
8 more retailers have this diamond
Prices start from $1,509 NZDSave up to $886 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
0.51ct Cushion
$1,509 NZD