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Cushion|Natural|GIA

1.20ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5231714298

Certificate GIA 5231714298

Diamond specifications and retailer prices

From HK$11,055 HKD
As of November 2, 2026
Save HK$10,827 HKD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$21,882 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 5231714298. Listed at 15 retailers as of November 2, 2026, with prices from HK$11,055 to HK$21,882, a HK$10,827 spread on the same certified stone. MOH London lists it at HK$21,882. 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
SymmetryExcellent
FluorescenceNone
Pavilion angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 5231714298
Dimensions6.00 × 5.86 × 4.01 mm
L/W Ratio1.02
Top View
6.00 mm5.86 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231714298
Side View
Table 63.0%CrownGirdle: THK-ETKPavilion 36.5°Culet: NoneDepth 68.5%

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 2
Current: HK$21,882 HKD|Low: HK$10,412 HKD|High: HK$26,485 HKD|Avg: HK$15,113 HKD|-17.3%
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
November 4, 2026
Retailer 14HK$11,055 HKD
Retailer 5HK$11,989 HKD
Retailer 4HK$12,287 HKD
Retailer 13HK$12,491 HKD
Retailer 3HK$12,726 HKD
Retailer 11HK$13,103 HKD
Retailer 9HK$13,574 HKD
Retailer 12HK$13,574 HKD
Retailer 10HK$13,966 HKD
Retailer 2HK$13,982 HKD
Retailer 8HK$14,444 HKD
Retailer 7HK$16,987 HKD
Retailer 6HK$18,014 HKD
MOH LondonHK$21,882 HKD

41 data points across 14 retailers

15 retailersHK$11,055 HKD to HK$21,882 HKD

A
Cheapest Retailer
-
HK$11,055 HKD
A
Retailer 2
-
HK$11,989 HKD
View
A
Retailer 3
-
HK$12,287 HKD
View
A
Retailer 4
-
HK$12,491 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$12,726 HKD
View
B+
Retailer 6
-
HK$13,103 HKD
View
B+
Retailer 7
-
HK$13,574 HKD
View
B+
Retailer 8
-
HK$13,574 HKD
View
B+
Retailer 9
-
HK$13,966 HKD
View
B+
Retailer 10
-
HK$13,982 HKD
View
B+
Retailer 11
-
HK$14,444 HKD
View
B+
Retailer 12
-
HK$16,987 HKD
View
B
Retailer 13
-
HK$18,014 HKD
View
B
Retailer 14
-
HK$20,494 HKD
View
Most Expensive
B
MOH London
DD67D05AB · Nov 2
HK$21,882 HKD
£2,196 GBP
View
14 more retailers have this diamond
Prices start from HK$11,055 HKDSave up to HK$10,827 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$11,055 HKD