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Cushion|Natural|GIA

1.21ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6411171191

Certificate GIA 6411171191

Diamond specifications and retailer prices

From HK$14,225 HKD
As of November 6, 2026
Save HK$19,040 HKD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$33,265 HKD at MOH London · As of November 7, 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 F 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 6411171191. Listed at 14 retailers as of November 6, 2026, with prices from HK$14,225 to HK$33,265, a HK$19,040 spread on the same certified stone. MOH London lists it at HK$33,265. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6411171191
Dimensions6.18 × 5.94 × 4.10 mm
L/W Ratio1.04
Top View
6.18 mm5.94 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6411171191
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.9%

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$33,265 HKD|Low: HK$14,225 HKD|High: HK$33,802 HKD|Avg: HK$21,958 HKD|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 4HK$14,225 HKD
Retailer 9HK$14,241 HKD
Retailer 2HK$18,637 HKD
Retailer 3HK$20,197 HKD
Retailer 8HK$21,670 HKD
Retailer 10HK$21,921 HKD
Retailer 6HK$23,293 HKD
Retailer 5HK$23,708 HKD
Retailer 7HK$27,807 HKD
MOH LondonHK$33,265 HKD

25 data points across 10 retailers

14 retailersHK$14,225 HKD to HK$33,265 HKD

A
Cheapest Retailer
-
HK$14,225 HKD
A
Retailer 2
-
HK$14,241 HKD
View
A
Retailer 3
-
HK$18,637 HKD
View
A
Retailer 4
-
HK$19,343 HKD
View
Retailer 5
-
HK$19,735 HKD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
HK$20,181 HKD
View
A
Retailer 7
-
HK$20,197 HKD
View
B+
Retailer 8
-
HK$21,302 HKD
View
B+
Retailer 9
-
HK$21,670 HKD
View
B+
Retailer 10
-
HK$23,293 HKD
View
Retailer 11
-
HK$23,497 HKD
View
Price last confirmed 31 days ago
B+
Retailer 12
-
HK$23,708 HKD
View
B+
Retailer 13
-
HK$27,807 HKD
View
Most Expensive
B
MOH London
63BA0D0F2 · Nov 7
HK$33,265 HKD
£3,342 GBP
View
13 more retailers have this diamond
Prices start from HK$14,225 HKDSave up to HK$19,040 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$14,225 HKD