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Cushion|Natural|GIA

1.31ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 5553380503

Certificate GIA 5553380503

Diamond specifications and retailer prices

From HK$19,358 HKD
As of November 6, 2026
Save HK$23,541 HKD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$42,900 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.31ct natural cushion diamond

This 1.31ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553380503. Listed at 13 retailers as of November 4, 2026, with prices from HK$19,358 to HK$42,900, a HK$23,541 spread on the same certified stone. MOH London lists it at HK$42,900. 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

1.31
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553380503
Dimensions7.57 × 5.65 × 3.67 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
7.57 mm5.65 mm1.31 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553380503
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.9%

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$42,900 HKD|Low: HK$19,358 HKD|High: HK$43,895 HKD|Avg: HK$27,060 HKD|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9HK$19,358 HKD
Retailer 2HK$20,079 HKD
Retailer 11HK$23,739 HKD
Retailer 4HK$25,291 HKD
Retailer 3HK$25,934 HKD
Retailer 7HK$26,608 HKD
Retailer 10HK$26,843 HKD
Retailer 6HK$26,953 HKD
Retailer 8HK$27,674 HKD
Retailer 5HK$29,939 HKD
MOH LondonHK$42,900 HKD

28 data points across 11 retailers

13 retailersHK$19,358 HKD to HK$42,900 HKD

A
Cheapest Retailer
-
HK$19,358 HKD
A
Retailer 2
-
HK$20,079 HKD
View
B+
Retailer 3
-
HK$23,739 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$24,186 HKD
View
B+
Retailer 5
-
HK$25,291 HKD
View
B+
Retailer 6
-
HK$25,715 HKD
View
Retailer 7
-
HK$25,934 HKD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$26,608 HKD
View
B+
Retailer 9
-
HK$26,843 HKD
View
B+
Retailer 10
-
HK$26,953 HKD
View
B+
Retailer 11
-
HK$27,674 HKD
View
B+
Retailer 12
-
HK$29,939 HKD
View
Most Expensive
B
MOH London
4213526FE · Nov 4
HK$42,900 HKD
£4,310 GBP
View
12 more retailers have this diamond
Prices start from HK$19,358 HKDSave up to HK$23,541 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
1.31ct Cushion
HK$19,358 HKD