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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1555442161

Certificate GIA 1555442161

Diamond specifications and retailer prices

From HK$9,842 HKD
As of November 1, 2026
Save HK$13,764 HKD (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$23,606 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555442161. Listed at 7 retailers as of November 1, 2026, with prices from HK$9,842 to HK$23,606, a HK$13,764 spread on the same certified stone. MOH London lists it at HK$23,606. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555442161
Dimensions7.10 × 5.50 × 3.84 mm
L/W Ratio1.29
Key to symbols
Crystal, Feather, Needle
Top View
7.10 mm5.50 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555442161
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.7%

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 1
Current: HK$23,606 HKD|Low: HK$9,842 HKD|High: HK$26,127 HKD|Avg: HK$15,315 HKD|-8.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 5HK$9,842 HKD
Retailer 3HK$12,099 HKD
Retailer 4HK$12,734 HKD
Retailer 7HK$12,828 HKD
Retailer 6HK$13,969 HKD
Retailer 2HK$18,561 HKD
MOH LondonHK$23,606 HKD

33 data points across 7 retailers

7 retailersHK$9,842 HKD to HK$23,606 HKD

A
Cheapest Retailer
-
HK$9,842 HKD
A
Retailer 2
-
HK$12,099 HKD
$1,542 USD
View
A
Retailer 3
-
HK$12,734 HKD
$1,623 USD
View
A
Retailer 4
-
HK$12,828 HKD
$1,635 USD
View
Final sale: no returns
Retailer 5
-
HK$13,969 HKD
SGD 2,406 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$18,561 HKD
€2,253 EUR
View
Most Expensive
B
MOH London
90FC66B24 · Nov 2
HK$23,606 HKD
£2,369 GBP
View
6 more retailers have this diamond
Prices start from HK$9,842 HKDSave up to HK$13,764 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$9,842 HKD