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Cushion|Natural|GIA

1.22ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 2241015505

Certificate GIA 2241015505

Diamond specifications and retailer prices

From £860 GBP
HK$9,000 HKD
As of October 31, 2026
Save £1,248 GBP (59%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,108 GBP at 18carati · As of October 31, 2026
View at 18carati

About this 1.22ct natural cushion diamond

This 1.22ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2241015505. Listed at 7 retailers as of October 31, 2026, with prices from £860 to £2,108, a £1,248 spread on the same certified stone. 18carati lists it at £2,108. 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

1.22
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.56°
OriginNatural
Grading LabGIA
CertificateGIA 2241015505
Dimensions6.98 × 5.48 × 3.82 mm
L/W Ratio1.27
Key to symbols
Crystal, Feather, Needle
Top View
6.98 mm5.48 mm1.22 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2241015505
Side View
Table 62.0%CrownGirdle: STK-THKPavilion 35.56°Culet: 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: Oct 31
Current: £2,108 GBP|Low: £850 GBP|High: £2,264 GBP|Avg: £1,496 GBP|+10.2%
18carati
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 3£860 GBP
Retailer 2£1,108 GBP
Retailer 6£1,195 GBP
Retailer 7£1,372 GBP
Retailer 4£1,599 GBP
Retailer 5£2,059 GBP
18carati£2,108 GBP

32 data points across 7 retailers

7 retailers£860 GBP to £2,108 GBP

A
Cheapest Retailer
-
£860 GBP
HK$9,000 HKD
A
Retailer 2
-
£1,108 GBP
$1,484 USD
View
A
Retailer 3
-
£1,195 GBP
SGD 2,163 SGD
View
B+
Retailer 4
-
£1,372 GBP
A$2,828 AUD
View
B+
Retailer 5
-
£1,599 GBP
€2,041 EUR
View
B
Retailer 6
-
£2,059 GBP
View
Most Expensive
B
18carati
AT-5505JSI2-0122 · Oct 31
£2,108 GBP
€2,690 EUR
View
6 more retailers have this diamond
Prices start from £860 GBPSave up to £1,248 GBP

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
1.22ct Cushion
£860 GBP