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Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 1558366202

Certificate GIA 1558366202

Diamond specifications and retailer prices

From HK$19,460 HKD
As of November 6, 2026
Save HK$23,579 HKD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$43,039 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 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 1558366202. Listed at 17 retailers as of November 4, 2026, with prices from HK$19,460 to HK$43,039, a HK$23,579 spread on the same certified stone. MOH London lists it at HK$43,039. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1558366202
Dimensions7.16 × 5.34 × 3.62 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural
Top View
7.16 mm5.34 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1558366202
Side View
Table 67.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 67.7%

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$43,039 HKD|Low: HK$19,256 HKD|High: HK$45,298 HKD|Avg: HK$27,443 HKD|-5.0%
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
November 6, 2026
Retailer 12HK$19,460 HKD
Retailer 2HK$20,315 HKD
Retailer 5HK$23,261 HKD
Retailer 10HK$23,528 HKD
Retailer 3HK$23,810 HKD
Retailer 13HK$24,962 HKD
Retailer 14HK$25,809 HKD
Retailer 11HK$26,702 HKD
Retailer 8HK$27,055 HKD
Retailer 4HK$27,588 HKD
Retailer 6HK$28,607 HKD
Retailer 7HK$30,041 HKD
Retailer 9HK$31,499 HKD
MOH LondonHK$43,039 HKD

29 data points across 14 retailers

17 retailersHK$19,460 HKD to HK$43,039 HKD

A
Cheapest Retailer
-
HK$19,460 HKD
A
Retailer 2
-
HK$20,315 HKD
View
B+
Retailer 3
-
HK$23,261 HKD
View
B+
Retailer 4
-
HK$23,528 HKD
View
B+
Retailer 5
-
HK$23,810 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$24,766 HKD
View
B+
Retailer 7
-
HK$24,962 HKD
View
Retailer 8
-
HK$25,809 HKD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
HK$26,373 HKD
View
B+
Retailer 10
-
HK$26,702 HKD
View
B+
Retailer 11
-
HK$27,055 HKD
View
B+
Retailer 12
-
HK$27,588 HKD
View
B+
Retailer 13
-
HK$28,607 HKD
View
Retailer 14
-
HK$28,693 HKD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
HK$30,041 HKD
View
B+
Retailer 16
-
HK$31,499 HKD
View
Most Expensive
B
MOH London
ED05D376F · Nov 4
HK$43,039 HKD
£4,324 GBP
View
16 more retailers have this diamond
Prices start from HK$19,460 HKDSave up to HK$23,579 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$19,460 HKD