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Cushion|Natural|GIA

1.20ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 1558466780

Certificate GIA 1558466780

Diamond specifications and retailer prices

From HK$23,246 HKD
As of November 6, 2026
Save HK$23,598 HKD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$50,215 HKD at Queensmith · As of October 28, 2026
View at Queensmith

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 1558466780. Listed at 19 retailers as of November 4, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558466780
Dimensions6.91 × 5.31 × 3.66 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural, Natural
Top View
6.91 mm5.31 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558466780
Side View
Table 65.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 68.8%

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$50,215 HKD|Low: HK$23,246 HKD|High: HK$51,161 HKD|Avg: HK$31,099 HKD|+0.7%
Queensmith
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
Retailer 16
November 6, 2026
Retailer 3HK$23,246 HKD
Retailer 5HK$23,481 HKD
Retailer 13HK$24,492 HKD
Retailer 15HK$25,448 HKD
Retailer 16HK$25,573 HKD
Retailer 2HK$27,251 HKD
Retailer 7HK$27,470 HKD
Retailer 10HK$28,896 HKD
Retailer 6HK$28,998 HKD
Retailer 8HK$28,998 HKD
Retailer 14HK$30,017 HKD
Retailer 4HK$31,820 HKD
Retailer 9HK$32,705 HKD
Retailer 11HK$34,281 HKD
Retailer 12HK$46,844 HKD
QueensmithHK$50,215 HKD

29 data points across 16 retailers

19 retailersHK$23,246 HKD to HK$46,844 HKD

A
Cheapest Retailer
-
HK$23,246 HKD
A
Retailer 2
-
HK$23,481 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$24,492 HKD
View
Retailer 4
-
HK$25,448 HKD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
HK$25,573 HKD
View
B+
Retailer 6
-
HK$27,251 HKD
View
B+
Retailer 7
-
HK$27,470 HKD
View
B+
Retailer 8
-
HK$27,548 HKD
View
B+
Retailer 9
-
HK$28,896 HKD
View
B+
Retailer 10
-
HK$28,998 HKD
View
B+
Retailer 11
-
HK$28,998 HKD
View
B+
Retailer 12
-
HK$29,382 HKD
View
B+
Retailer 13
-
HK$30,017 HKD
View
Retailer 14
-
HK$31,820 HKD
View
Price last confirmed 15 days ago
Retailer 15
-
HK$32,180 HKD
View
Price last confirmed 34 days ago
B+
Retailer 16
-
HK$32,705 HKD
View
B+
Retailer 17
-
HK$34,281 HKD
View
B
Retailer 18
-
HK$46,844 HKD
View
Most Expensive
Queensmith
1558466780 · Oct 28
HK$50,215 HKD
£5,045 GBP
View
Price last confirmed 10 days ago
18 more retailers have this diamond
Prices start from HK$23,246 HKDSave up to HK$23,598 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$23,246 HKD