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Cushion|Natural|GIA

1.20ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1559160548

Certificate GIA 1559160548

Diamond specifications and retailer prices

From HK$25,777 HKD
As of November 6, 2026
Save HK$27,917 HKD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$55,192 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 D 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 1559160548. Listed at 20 retailers as of November 4, 2026, with a 108% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559160548
Dimensions8.04 × 5.38 × 3.63 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Pinpoint
Top View
8.04 mm5.38 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559160548
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.5%

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 6
Current: HK$55,192 HKD|Low: HK$25,581 HKD|High: HK$56,711 HKD|Avg: HK$36,594 HKD|-2.3%
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 4HK$25,777 HKD
Retailer 2HK$26,733 HKD
Retailer 7HK$29,484 HKD
Retailer 6HK$30,440 HKD
Retailer 3HK$31,209 HKD
Retailer 13HK$31,491 HKD
Retailer 8HK$32,517 HKD
Retailer 9HK$32,792 HKD
Retailer 5HK$34,155 HKD
Retailer 11HK$34,242 HKD
Retailer 15HK$34,970 HKD
Retailer 16HK$35,934 HKD
Retailer 10HK$38,043 HKD
Retailer 12HK$41,264 HKD
Retailer 14HK$53,694 HKD
QueensmithHK$55,192 HKD

22 data points across 16 retailers

20 retailersHK$25,777 HKD to HK$53,694 HKD

B+
Cheapest Retailer
-
HK$25,777 HKD
B+
Retailer 2
-
HK$26,733 HKD
View
B+
Retailer 3
-
HK$29,484 HKD
View
B+
Retailer 4
-
HK$30,440 HKD
View
B+
Retailer 5
-
HK$31,209 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$31,491 HKD
View
B+
Retailer 7
-
HK$32,517 HKD
View
B+
Retailer 8
-
HK$32,557 HKD
View
B+
Retailer 9
-
HK$32,564 HKD
View
B+
Retailer 10
-
HK$32,792 HKD
View
Retailer 11
-
HK$34,155 HKD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
HK$34,242 HKD
View
B
Retailer 13
-
HK$34,829 HKD
View
B+
Retailer 14
-
HK$34,970 HKD
View
B+
Retailer 15
-
HK$35,934 HKD
View
Retailer 16
-
HK$36,029 HKD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
HK$38,043 HKD
View
B
Retailer 18
-
HK$41,264 HKD
View
B
Retailer 19
-
HK$53,694 HKD
View
Most Expensive
Queensmith
1559160548 · Oct 28
HK$55,192 HKD
£5,545 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from HK$25,777 HKDSave up to HK$27,917 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$25,777 HKD