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Cushion|Natural|GIA

1.21ct F SI1 Cushion Natural Diamond

GD • F/SI1 • GIA 1555552860

Certificate GIA 1555552860

Diamond specifications and retailer prices

From HK$25,378 HKD
As of November 4, 2026
Save HK$30,800 HKD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$56,178 HKD at MOH London · As of November 2, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1555552860. Listed at 19 retailers as of November 2, 2026, with prices from HK$25,378 to HK$56,178, a HK$30,800 spread on the same certified stone. MOH London lists it at HK$56,178. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555552860
Dimensions7.35 × 5.50 × 3.68 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Cavity, Needle, Indented Natural
Top View
7.35 mm5.50 mm1.21 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555552860
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.0%

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 4
Current: HK$56,178 HKD|Low: HK$25,174 HKD|High: HK$56,247 HKD|Avg: HK$36,358 HKD|+0.6%
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
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 14HK$25,378 HKD
Retailer 11HK$26,443 HKD
Retailer 5HK$30,088 HKD
Retailer 2HK$30,809 HKD
Retailer 4HK$30,997 HKD
Retailer 8HK$31,977 HKD
Retailer 12HK$32,760 HKD
Retailer 15HK$33,591 HKD
Retailer 9HK$34,022 HKD
Retailer 3HK$34,751 HKD
Retailer 7HK$35,496 HKD
Retailer 6HK$35,707 HKD
Retailer 10HK$37,862 HKD
Retailer 13HK$41,287 HKD
Retailer 16HK$54,744 HKD
MOH LondonHK$56,178 HKD

24 data points across 16 retailers

19 retailersHK$25,378 HKD to HK$56,178 HKD

B+
Cheapest Retailer
-
HK$25,378 HKD
B+
Retailer 2
-
HK$26,443 HKD
View
Retailer 3
-
HK$30,088 HKD
View
Price last confirmed 9 days ago
B
Retailer 4
-
HK$30,809 HKD
View
B
Retailer 5
-
HK$31,867 HKD
View
B
Retailer 6
-
HK$31,898 HKD
View
Retailer 7
-
HK$31,977 HKD
View
Price last confirmed 11 days ago
B
Retailer 8
-
HK$32,760 HKD
View
Retailer 9
-
HK$33,591 HKD
View
Price last confirmed 9 days ago
B
Retailer 10
-
HK$34,022 HKD
View
B
Retailer 11
-
HK$34,069 HKD
View
B
Retailer 12
-
HK$34,751 HKD
View
B
Retailer 13
-
HK$35,496 HKD
View
B
Retailer 14
-
HK$35,707 HKD
View
Retailer 15
-
HK$37,306 HKD
View
Price last confirmed 29 days ago
B
Retailer 16
-
HK$37,862 HKD
View
B
Retailer 17
-
HK$41,287 HKD
View
Retailer 18
-
HK$54,744 HKD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
59AF216A7 · Nov 2
HK$56,178 HKD
£5,644 GBP
View
18 more retailers have this diamond
Prices start from HK$25,378 HKDSave up to HK$30,800 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+
1.21ct Cushion
HK$25,378 HKD