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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 7553811117

Certificate GIA 7553811117

Diamond specifications and retailer prices

From HK$16,647 HKD
As of November 6, 2026
Save HK$22,033 HKD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$38,679 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded I 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 7553811117. Listed at 17 retailers as of November 4, 2026, with prices from HK$16,647 to HK$38,679, a HK$22,033 spread on the same certified stone. MOH London lists it at HK$38,679. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7553811117
Dimensions7.05 × 5.38 × 3.74 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Knot, Feather, Needle
Top View
7.05 mm5.38 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7553811117
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.4%

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$38,679 HKD|Low: HK$16,647 HKD|High: HK$39,187 HKD|Avg: HK$24,407 HKD|-1.3%
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
November 7, 2026
Retailer 13HK$16,647 HKD
Retailer 6HK$17,344 HKD
Retailer 11HK$19,719 HKD
Retailer 4HK$20,424 HKD
Retailer 7HK$21,474 HKD
Retailer 5HK$22,243 HKD
Retailer 9HK$23,160 HKD
Retailer 3HK$23,246 HKD
Retailer 2HK$23,426 HKD
Retailer 12HK$24,061 HKD
Retailer 8HK$25,762 HKD
Retailer 10HK$27,016 HKD
MOH LondonHK$38,679 HKD

25 data points across 13 retailers

17 retailersHK$16,647 HKD to HK$38,679 HKD

A
Cheapest Retailer
-
HK$16,647 HKD
A
Retailer 2
-
HK$17,344 HKD
View
B+
Retailer 3
-
HK$19,719 HKD
View
B+
Retailer 4
-
HK$20,424 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$20,934 HKD
View
B+
Retailer 6
-
HK$20,965 HKD
View
B+
Retailer 7
-
HK$21,474 HKD
View
Retailer 8
-
HK$22,243 HKD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
HK$22,297 HKD
View
B+
Retailer 10
-
HK$23,160 HKD
View
B+
Retailer 11
-
HK$23,246 HKD
View
B+
Retailer 12
-
HK$23,426 HKD
View
B
Retailer 13
-
HK$24,061 HKD
View
Retailer 14
-
HK$25,174 HKD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
HK$25,762 HKD
View
B
Retailer 16
-
HK$27,016 HKD
View
Most Expensive
B
MOH London
A1072B078 · Nov 4
HK$38,679 HKD
£3,886 GBP
View
16 more retailers have this diamond
Prices start from HK$16,647 HKDSave up to HK$22,033 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$16,647 HKD