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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 $382 USD
As of November 6, 2026
Save $826 USD (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,208 USD 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 $382 to $1,208, a $826 spread on the same certified stone. MOH London lists it at $1,208. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,208 USD|Low: $382 USD|High: $1,222 USD|Avg: $733 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$382 USD
Retailer 7$654 USD
Retailer 6$655 USD
Retailer 4$670 USD
Retailer 3$777 USD
Retailer 5$811 USD
MOH London$1,208 USD

38 data points across 7 retailers

7 retailers$382 USD to $1,208 USD

A
Cheapest Retailer
-
$382 USD
B+
Retailer 2
-
$654 USD
View
B+
Retailer 3
-
$655 USD
View
B+
Retailer 4
-
$670 USD
View
B
Retailer 5
-
$777 USD
View
B
Retailer 6
-
$811 USD
View
Most Expensive
B
MOH London
53A8E6658 · Nov 2
$1,208 USD
£951 GBP
View
6 more retailers have this diamond
Prices start from $382 USDSave up to $826 USD

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
$382 USD