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Cushion|Natural|GIA

0.51ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 2497945497

Certificate GIA 2497945497

Diamond specifications and retailer prices

From $906 NZD
As of November 6, 2026
Save $2,011 NZD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,916 NZD at MOH London · As of November 4, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2497945497. Listed at 12 retailers as of November 4, 2026, with prices from $906 to $2,916, a $2,011 spread on the same certified stone. MOH London lists it at $2,916. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2497945497
Dimensions5.28 × 4.19 × 2.94 mm
L/W Ratio1.26
Top View
5.28 mm4.19 mm0.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2497945497
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,916 NZD|Low: $906 NZD|High: $2,955 NZD|Avg: $1,790 NZD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$906 NZD
Retailer 9$1,293 NZD
Retailer 3$1,472 NZD
Retailer 5$1,614 NZD
Retailer 6$1,665 NZD
Retailer 2$1,827 NZD
Retailer 8$1,945 NZD
Retailer 4$1,997 NZD
MOH London$2,916 NZD

43 data points across 9 retailers

12 retailers$906 NZD to $2,916 NZD

A
Cheapest Retailer
-
$906 NZD
Final sale: no returns
Retailer 2
-
$1,293 NZD
View
Price last confirmed 9 days ago
B
Retailer 3
-
$1,402 NZD
View
B
Retailer 4
-
$1,472 NZD
View
B
Retailer 5
-
$1,532 NZD
View
B
Retailer 6
-
$1,614 NZD
View
B
Retailer 7
-
$1,622 NZD
View
B
Retailer 8
-
$1,665 NZD
View
B
Retailer 9
-
$1,827 NZD
View
Retailer 10
-
$1,945 NZD
View
Price last confirmed 34 days ago
B
Retailer 11
-
$1,997 NZD
View
Most Expensive
B
MOH London
BBC1FB3F6 · Nov 4
$2,916 NZD
£1,273 GBP
View
11 more retailers have this diamond
Prices start from $906 NZDSave up to $2,011 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.

A
0.51ct Cushion
$906 NZD