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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 1447136627

Certificate GIA 1447136627

Diamond specifications and retailer prices

From HK$11,345 HKD
$1,446 USD
As of November 3, 2026
Save HK$10,198 HKD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$21,543 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1447136627. Listed at 8 retailers as of November 2, 2026, with prices from HK$11,345 to HK$21,543, a HK$10,198 spread on the same certified stone. MOH London lists it at HK$21,543. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1447136627
Dimensions6.36 × 5.71 × 3.92 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Knot
Top View
6.36 mm5.71 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1447136627
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

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 3
Current: HK$21,543 HKD|Low: HK$10,396 HKD|High: HK$21,802 HKD|Avg: HK$14,081 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 9HK$11,008 HKD
Retailer 7HK$11,345 HKD
Retailer 10HK$11,455 HKD
Retailer 6HK$11,847 HKD
Retailer 5HK$12,295 HKD
Retailer 3HK$13,658 HKD
Retailer 4HK$15,008 HKD
Retailer 8HK$16,043 HKD
Retailer 2HK$16,724 HKD
MOH LondonHK$21,543 HKD

34 data points across 10 retailers

8 retailersHK$11,345 HKD to HK$21,543 HKD

B+
Cheapest Retailer
-
HK$11,345 HKD
$1,446 USD
Final sale: no returns
B+
Retailer 2
-
HK$11,847 HKD
$1,510 USD
View
Retailer 3
-
HK$12,295 HKD
$1,567 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
HK$13,658 HKD
£1,371 GBP
View
B+
Retailer 5
-
HK$15,008 HKD
ZAR 30,901 ZAR
View
Retailer 6
-
HK$16,043 HKD
A$3,146 AUD
View
Price last confirmed 29 days ago
B
Retailer 7
-
HK$16,724 HKD
€2,030 EUR
View
Most Expensive
B
MOH London
C2280FB64 · Nov 2
HK$21,543 HKD
£2,162 GBP
View
7 more retailers have this diamond
Prices start from HK$11,345 HKDSave up to HK$10,198 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$11,345 HKD