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Cushion|Natural|GIA

1.20ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 5553311990

Certificate GIA 5553311990

Diamond specifications and retailer prices

From HK$15,142 HKD
As of November 6, 2026
Save HK$19,855 HKD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$34,996 HKD at MOH London · As of November 7, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic 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 5553311990. Listed at 18 retailers as of November 6, 2026, with prices from HK$15,142 to HK$34,996, a HK$19,855 spread on the same certified stone. MOH London lists it at HK$34,996. 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

1.20
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5553311990
Dimensions7.10 × 5.45 × 3.71 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
7.10 mm5.45 mm1.20 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5553311990
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.0%

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: HK$34,996 HKD|Low: HK$14,946 HKD|High: HK$36,937 HKD|Avg: HK$21,577 HKD|-5.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 15HK$15,142 HKD
Retailer 9HK$15,879 HKD
Retailer 14HK$18,394 HKD
Retailer 4HK$18,535 HKD
Retailer 6HK$18,849 HKD
Retailer 8HK$18,865 HKD
Retailer 3HK$19,319 HKD
Retailer 7HK$20,832 HKD
Retailer 12HK$20,996 HKD
Retailer 10HK$21,247 HKD
Retailer 5HK$21,866 HKD
Retailer 2HK$21,890 HKD
Retailer 13HK$24,508 HKD
Retailer 11HK$24,931 HKD
MOH LondonHK$34,996 HKD

29 data points across 15 retailers

18 retailersHK$15,142 HKD to HK$34,996 HKD

A
Cheapest Retailer
-
HK$15,142 HKD
A
Retailer 2
-
HK$15,879 HKD
View
A
Retailer 3
-
HK$18,394 HKD
View
A
Retailer 4
-
HK$18,535 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$18,849 HKD
View
A
Retailer 6
-
HK$18,865 HKD
View
A
Retailer 7
-
HK$19,319 HKD
View
A
Retailer 8
-
HK$19,531 HKD
View
Retailer 9
-
HK$20,832 HKD
View
Price last confirmed 22 days ago
A
Retailer 10
-
HK$20,996 HKD
View
B+
Retailer 11
-
HK$21,028 HKD
View
A
Retailer 12
-
HK$21,247 HKD
View
B+
Retailer 13
-
HK$21,866 HKD
View
B+
Retailer 14
-
HK$21,890 HKD
View
Retailer 15
-
HK$23,497 HKD
View
Price last confirmed 31 days ago
B+
Retailer 16
-
HK$24,508 HKD
View
B+
Retailer 17
-
HK$24,931 HKD
View
Most Expensive
B
MOH London
D9C128CBD · Nov 7
HK$34,996 HKD
£3,516 GBP
View
17 more retailers have this diamond
Prices start from HK$15,142 HKDSave up to HK$19,855 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
1.20ct Cushion
HK$15,142 HKD