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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 HK$5,122 HKD
As of October 29, 2026
Save HK$7,613 HKD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$12,735 HKD 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 HK$5,122 to HK$12,735, a HK$7,613 spread on the same certified stone. MOH London lists it at HK$12,735. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: HK$12,735 HKD|Low: HK$5,122 HKD|High: HK$12,815 HKD|Avg: HK$8,843 HKD|-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 9HK$5,122 HKD
Retailer 11HK$6,991 HKD
Retailer 3HK$7,023 HKD
Retailer 10HK$7,171 HKD
Retailer 4HK$7,791 HKD
Retailer 2HK$8,055 HKD
Retailer 7HK$8,077 HKD
Retailer 5HK$8,767 HKD
Retailer 6HK$9,738 HKD
Retailer 8HK$10,200 HKD
Retailer 12HK$10,396 HKD
MOH LondonHK$12,735 HKD

33 data points across 12 retailers

14 retailersHK$5,122 HKD to HK$12,735 HKD

A
Cheapest Retailer
-
HK$5,122 HKD
A
Retailer 2
-
HK$6,991 HKD
$891 USD
View
A
Retailer 3
-
HK$7,023 HKD
$895 USD
View
Retailer 4
-
HK$7,048 HKD
$898 USD
View
Price last confirmed 50 days ago
A
Retailer 5
-
HK$7,171 HKD
SGD 1,235 SGD
View
A
Retailer 6
-
HK$7,791 HKD
$993 USD
View
A
Retailer 7
-
HK$8,055 HKD
£808 GBP
View
A
Retailer 8
-
HK$8,077 HKD
£811 GBP
View
A
Retailer 9
-
HK$8,767 HKD
£880 GBP
View
B+
Retailer 10
-
HK$9,221 HKD
A$1,808 AUD
View
A
Retailer 11
-
HK$9,738 HKD
€1,182 EUR
View
A
Retailer 12
-
HK$10,200 HKD
ZAR 21,002 ZAR
View
Retailer 13
-
HK$10,396 HKD
A$2,038 AUD
View
Price last confirmed 25 days ago
Most Expensive
B+
MOH London
E6EA676CB · Oct 29
HK$12,735 HKD
£1,278 GBP
View
13 more retailers have this diamond
Prices start from HK$5,122 HKDSave up to HK$7,613 HKD

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
HK$5,122 HKD