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Radiant|Natural|GIA

1.20ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 7492622241

Certificate GIA 7492622241

Diamond specifications and retailer prices

From £1,097 GBP
HK$11,500 HKD
As of November 2, 2026
Save £1,416 GBP (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,517 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant 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 7492622241. Listed at 16 retailers as of November 2, 2026, with a 129% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7492622241
Dimensions7.92 × 4.87 × 3.31 mm
L/W Ratio1.63
Girdle conditionPolished
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Cloud, Crystal
Top View
7.92 mm4.87 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7492622241
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.9%

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 2
Current: £3,517 GBP|Low: £1,097 GBP|High: £3,517 GBP|Avg: £1,704 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6£1,097 GBP
Retailer 5£1,158 GBP
Retailer 9£1,323 GBP
Retailer 11£1,359 GBP
Retailer 4£1,442 GBP
Retailer 3£1,534 GBP
Retailer 8£1,537 GBP
Retailer 10£1,573 GBP
Retailer 12£1,664 GBP
Retailer 7£1,958 GBP
Retailer 2£2,513 GBP
NZ Jewellers£3,517 GBP

35 data points across 12 retailers

16 retailers£1,097 GBP to £2,513 GBP

A
Cheapest Retailer
-
£1,097 GBP
HK$11,500 HKD
A
Retailer 2
-
£1,158 GBP
₹147,997 INR
View
A
Retailer 3
-
£1,323 GBP
$1,776 USD
View
Final sale: no returns
A
Retailer 4
-
£1,359 GBP
SGD 2,464 SGD
View
B+
Retailer 5
-
£1,385 GBP
$1,858 USD
View
Retailer 6
-
£1,442 GBP
$1,935 USD
View
Price last confirmed 17 days ago
Retailer 7
-
£1,442 GBP
$1,935 USD
View
Price last confirmed 15 days ago
Retailer 8
-
£1,508 GBP
$2,024 USD
View
Price last confirmed 17 days ago
B+
Retailer 9
-
£1,534 GBP
SGD 2,781 SGD
View
B+
Retailer 10
-
£1,537 GBP
$2,062 USD
View
B+
Retailer 11
-
£1,544 GBP
A$3,188 AUD
View
B+
Retailer 12
-
£1,573 GBP
View
Retailer 13
-
£1,664 GBP
$2,233 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
£1,958 GBP
€2,503 EUR
View
B
Retailer 15
-
£2,513 GBP
View
Most Expensive
NZ Jewellers
3b59b0c5-1095-4afc-885d-294a3438523d · Oct 17
£3,517 GBP
$4,720 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from £1,097 GBPSave up to £1,416 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
1.20ct Radiant
£1,097 GBP