CaratHunter
Plans
Cushion|Natural|IGI

0.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • IGI 749531607

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 749531607

Diamond specifications and retailer prices

From $556 AUD
As of November 6, 2026
Save $1,202 AUD (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,758 AUD at MOH London · As of November 2, 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 very-good cut grade and certified by IGI 749531607. Listed at 7 retailers as of November 2, 2026, with prices from $556 to $1,758, a $1,202 spread on the same certified stone. MOH London lists it at $1,758. 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
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle36.1°
OriginNatural
Grading LabIGI
CertificateIGI 749531607
Dimensions4.60 × 4.34 × 3.00 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizeNone
Top View
4.60 mm4.34 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 749531607
Side View
Table 61.0%Crown 36.6°Girdle: STK-VTKPavilion 36.1°Culet: NoneDepth 69.1%

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: $1,758 AUD|Low: $556 AUD|High: $1,778 AUD|Avg: $1,067 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$556 AUD
Retailer 7$952 AUD
Retailer 6$953 AUD
Retailer 4$975 AUD
Retailer 3$1,131 AUD
Retailer 5$1,180 AUD
MOH London$1,758 AUD

38 data points across 7 retailers

7 retailers$556 AUD to $1,758 AUD

A
Cheapest Retailer
-
$556 AUD
B+
Retailer 2
-
$952 AUD
View
B+
Retailer 3
-
$953 AUD
View
B+
Retailer 4
-
$975 AUD
View
B
Retailer 5
-
$1,131 AUD
View
B
Retailer 6
-
$1,180 AUD
View
Most Expensive
B
MOH London
53A8E6658 · Nov 2
$1,758 AUD
£951 GBP
View
6 more retailers have this diamond
Prices start from $556 AUDSave up to $1,202 AUD

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
$556 AUD