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Cushion|Natural|GIA

5.05ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 5231867071

Certificate GIA 5231867071

Diamond specifications and retailer prices

From $99,933 CAD
HK$558,900 HKD
As of October 30, 2026
Save $86,425 CAD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $186,358 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 5.05ct natural cushion diamond

This 5.05ct natural cushion sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231867071. Listed at 8 retailers as of October 29, 2026, with prices from $99,933 to $186,358, a $86,425 spread on the same certified stone. MOH London lists it at $186,358. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.05
Carat
E
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle35.83°
OriginNatural
Grading LabGIA
CertificateGIA 5231867071
Dimensions12.77 × 8.63 × 5.85 mm
L/W Ratio1.48
Top View
12.77 mm8.63 mm5.05 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5231867071
Side View
Table 63.0%CrownGirdle: STK-THKPavilion 35.83°Culet: NoneDepth 67.7%

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: Oct 30
Current: $186,358 CAD|Low: $99,933 CAD|High: $209,201 CAD|Avg: $139,588 CAD|-10.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6$99,933 CAD
Retailer 3$112,356 CAD
Retailer 8$119,909 CAD
Retailer 7$123,359 CAD
Retailer 2$124,692 CAD
Retailer 5$132,556 CAD
Retailer 4$148,957 CAD
MOH London$186,358 CAD

37 data points across 8 retailers

8 retailers$99,933 CAD to $186,358 CAD

A
Cheapest Retailer
-
$99,933 CAD
HK$558,900 HKD
A
Retailer 2
-
$112,356 CAD
€76,603 EUR
View
Retailer 3
-
$119,909 CAD
SGD 115,999 SGD
View
Price last confirmed 21 days ago
A
Retailer 4
-
$123,359 CAD
$88,309 USD
View
A
Retailer 5
-
$124,692 CAD
£70,286 GBP
View
A
Retailer 6
-
$132,556 CAD
$94,893 USD
View
B+
Retailer 7
-
$148,957 CAD
€101,556 EUR
View
Most Expensive
B+
MOH London
9BF9C817A · Oct 29
$186,358 CAD
£105,046 GBP
View
7 more retailers have this diamond
Prices start from $99,933 CADSave up to $86,425 CAD

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
5.05ct Cushion
$99,933 CAD