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Cushion|Natural|GIA

1.20ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 7542838428

Certificate GIA 7542838428

Diamond specifications and retailer prices

From HK$15,158 HKD
As of November 2, 2026
Save HK$19,767 HKD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$34,925 HKD at MOH London · As of November 2, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7542838428. Listed at 15 retailers as of November 2, 2026, with prices from HK$15,158 to HK$34,925, a HK$19,767 spread on the same certified stone. MOH London lists it at HK$34,925. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7542838428
Dimensions7.24 × 5.41 × 3.66 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity, Indented Natural, Needle
Top View
7.24 mm5.41 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7542838428
Side View
Table 64.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$34,925 HKD|Low: HK$15,158 HKD|High: HK$35,703 HKD|Avg: HK$21,371 HKD|-2.2%
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
November 4, 2026
Retailer 10HK$15,158 HKD
Retailer 7HK$15,904 HKD
Retailer 8HK$17,897 HKD
Retailer 12HK$18,399 HKD
Retailer 3HK$19,027 HKD
Retailer 4HK$20,133 HKD
Retailer 11HK$21,035 HKD
Retailer 2HK$21,090 HKD
Retailer 9HK$21,655 HKD
Retailer 5HK$22,667 HKD
Retailer 13HK$24,746 HKD
Retailer 6HK$24,793 HKD
MOH LondonHK$34,925 HKD

32 data points across 13 retailers

15 retailersHK$15,158 HKD to HK$34,925 HKD

B+
Cheapest Retailer
-
HK$15,158 HKD
B+
Retailer 2
-
HK$15,904 HKD
View
B+
Retailer 3
-
HK$17,897 HKD
View
B+
Retailer 4
-
HK$18,399 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$19,027 HKD
View
B+
Retailer 6
-
HK$19,027 HKD
View
B
Retailer 7
-
HK$20,133 HKD
View
B
Retailer 8
-
HK$21,035 HKD
View
B
Retailer 9
-
HK$21,090 HKD
View
B
Retailer 10
-
HK$21,655 HKD
View
B
Retailer 11
-
HK$21,765 HKD
View
Retailer 12
-
HK$22,667 HKD
View
Price last confirmed 28 days ago
B
Retailer 13
-
HK$24,746 HKD
View
B
Retailer 14
-
HK$24,793 HKD
View
Most Expensive
B
MOH London
4F637D3B5 · Nov 2
HK$34,925 HKD
£3,505 GBP
View
14 more retailers have this diamond
Prices start from HK$15,158 HKDSave up to HK$19,767 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.

B+
1.20ct Cushion
HK$15,158 HKD