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Cushion|Natural|GIA

1.21ct F SI2 Cushion Natural Diamond

ID • F/SI2 • GIA 2557672350

Certificate GIA 2557672350

Diamond specifications and retailer prices

From HK$14,640 HKD
As of November 6, 2026
Save HK$19,327 HKD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$43,148 HKD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557672350. Listed at 14 retailers as of November 4, 2026, with a 132% 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

1.21
Carat
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557672350
Dimensions7.08 × 5.45 × 3.75 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Cloud, Natural
Top View
7.08 mm5.45 mm1.21 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557672350
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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$43,148 HKD|Low: HK$14,444 HKD|High: HK$43,746 HKD|Avg: HK$22,619 HKD|+1.6%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 10HK$14,640 HKD
Retailer 5HK$15,314 HKD
Retailer 8HK$17,689 HKD
Retailer 3HK$17,948 HKD
Retailer 12HK$19,445 HKD
Retailer 7HK$20,315 HKD
Retailer 11HK$20,542 HKD
Retailer 2HK$20,573 HKD
Retailer 4HK$21,161 HKD
Retailer 6HK$24,131 HKD
Retailer 9HK$33,967 HKD
QueensmithHK$43,148 HKD

29 data points across 12 retailers

14 retailersHK$14,640 HKD to HK$33,967 HKD

A
Cheapest Retailer
-
HK$14,640 HKD
A
Retailer 2
-
HK$15,314 HKD
View
A
Retailer 3
-
HK$17,689 HKD
View
A
Retailer 4
-
HK$17,948 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$18,786 HKD
View
Retailer 6
-
HK$19,445 HKD
View
Price last confirmed 9 days ago
A
Retailer 7
-
HK$20,315 HKD
View
B+
Retailer 8
-
HK$20,542 HKD
View
A
Retailer 9
-
HK$20,573 HKD
View
B+
Retailer 10
-
HK$21,028 HKD
View
B+
Retailer 11
-
HK$21,161 HKD
View
B+
Retailer 12
-
HK$24,131 HKD
View
B
Retailer 13
-
HK$33,967 HKD
View
Most Expensive
Queensmith
2557672350 · Oct 28
HK$43,148 HKD
£4,335 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from HK$14,640 HKDSave up to HK$19,327 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
1.21ct Cushion
HK$14,640 HKD