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Cushion|Natural|GIA

1.20ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6495470525

Certificate GIA 6495470525

Diamond specifications and retailer prices

From HK$10,545 HKD
As of November 1, 2026
Save HK$13,718 HKD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$24,263 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 6495470525. Listed at 16 retailers as of November 1, 2026, with prices from HK$10,545 to HK$24,263, a HK$13,718 spread on the same certified stone. MOH London lists it at HK$24,263. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6495470525
Dimensions7.03 × 5.45 × 3.78 mm
L/W Ratio1.29
Top View
7.03 mm5.45 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6495470525
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$24,263 HKD|Low: HK$10,443 HKD|High: HK$24,552 HKD|Avg: HK$15,040 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 9HK$10,545 HKD
Retailer 5HK$11,259 HKD
Retailer 2HK$11,487 HKD
Retailer 6HK$13,503 HKD
Retailer 11HK$13,848 HKD
Retailer 4HK$14,719 HKD
Retailer 3HK$14,923 HKD
Retailer 12HK$15,300 HKD
Retailer 8HK$15,519 HKD
Retailer 10HK$16,861 HKD
Retailer 7HK$18,909 HKD
MOH LondonHK$24,263 HKD

26 data points across 12 retailers

16 retailersHK$10,545 HKD to HK$24,263 HKD

A
Cheapest Retailer
-
HK$10,545 HKD
A
Retailer 2
-
HK$11,259 HKD
View
A
Retailer 3
-
HK$11,487 HKD
View
B+
Retailer 4
-
HK$13,425 HKD
View
B+
Retailer 5
-
HK$13,456 HKD
View
B+
Retailer 6
-
HK$13,503 HKD
View
B+
Retailer 7
-
HK$13,848 HKD
View
Retailer 8
-
HK$14,719 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$14,923 HKD
View
B+
Retailer 10
-
HK$14,978 HKD
View
B+
Retailer 11
-
HK$15,300 HKD
View
B+
Retailer 12
-
HK$15,519 HKD
View
Retailer 13
-
HK$16,861 HKD
View
Price last confirmed 9 days ago
Retailer 14
-
HK$18,195 HKD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
HK$18,909 HKD
View
Most Expensive
B
MOH London
323C38BBB · Nov 2
HK$24,263 HKD
£2,435 GBP
View
15 more retailers have this diamond
Prices start from HK$10,545 HKDSave up to HK$13,718 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$10,545 HKD