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Cushion|Natural|GIA

0.81ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5436828209

Certificate GIA 5436828209

Diamond specifications and retailer prices

From £490 GBP
HK$5,100 HKD
As of October 29, 2026
Save £729 GBP (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,219 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.81ct natural cushion diamond

This 0.81ct natural cushion sits in the just-under-one-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 5436828209. Listed at 14 retailers as of October 29, 2026, with prices from £490 to £1,219, a £729 spread on the same certified stone. MOH London lists it at £1,219. 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

0.81
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5436828209
Dimensions5.21 × 4.77 × 3.56 mm
L/W Ratio1.09
Top View
5.21 mm4.77 mm0.81 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5436828209
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 74.8%

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: Oct 29
Current: £1,219 GBP|Low: £490 GBP|High: £1,226 GBP|Avg: £846 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9£490 GBP
Retailer 11£669 GBP
Retailer 3£672 GBP
Retailer 10£686 GBP
Retailer 4£746 GBP
Retailer 2£771 GBP
Retailer 7£773 GBP
Retailer 5£839 GBP
Retailer 6£932 GBP
Retailer 8£976 GBP
Retailer 12£995 GBP
MOH London£1,219 GBP

33 data points across 12 retailers

14 retailers£490 GBP to £1,219 GBP

A
Cheapest Retailer
-
£490 GBP
HK$5,100 HKD
A
Retailer 2
-
£669 GBP
$891 USD
View
A
Retailer 3
-
£672 GBP
$895 USD
View
A
Retailer 4
-
£675 GBP
$898 USD
View
Price last confirmed 50 days ago
A
Retailer 5
-
£686 GBP
SGD 1,235 SGD
View
A
Retailer 6
-
£746 GBP
$993 USD
View
A
Retailer 7
-
£771 GBP
View
A
Retailer 8
-
£773 GBP
View
A
Retailer 9
-
£839 GBP
View
B+
Retailer 10
-
£882 GBP
A$1,808 AUD
View
A
Retailer 11
-
£932 GBP
€1,182 EUR
View
A
Retailer 12
-
£976 GBP
ZAR 21,002 ZAR
View
B+
Retailer 13
-
£995 GBP
A$2,038 AUD
View
Price last confirmed 24 days ago
Most Expensive
B+
MOH London
E6EA676CB · Oct 29
£1,219 GBP
View
13 more retailers have this diamond
Prices start from £490 GBPSave up to £729 GBP

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
0.81ct Cushion
£490 GBP