Radiant|Natural|HRD

1.20ct J SI2 Radiant Natural Diamond

ID • J/SI2 • HRD 260000008490

Certificate HRD 260000008490

Diamond specifications and retailer prices

From £1,084 GBP
$1,453 USD
As of October 30, 2026
Save £986 GBP (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,138 GBP at NZ Jewellers · As of September 25, 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 HRD 260000008490. Listed at 9 retailers as of October 29, 2026, with a 91% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle34.7°
OriginNatural
Grading LabHRD
CertificateHRD 260000008490
Dimensions6.86 × 5.29 × 3.70 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
6.86 mm5.29 mm1.20 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000008490
Side View
Table 67.0%CrownGirdle: MediumPavilion 34.7°Culet: NoneDepth 69.9%

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: Oct 30
Current: £1,518 GBP|Low: £963 GBP|High: £2,281 GBP|Avg: £1,407 GBP|-6.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9£998 GBP
Retailer 7£1,084 GBP
Retailer 3£1,144 GBP
Retailer 5£1,221 GBP
Retailer 6£1,231 GBP
Retailer 8£1,241 GBP
Retailer 1£1,518 GBP
Retailer 4£1,712 GBP
Retailer 2£2,070 GBP

19 data points across 9 retailers

9 retailers£1,084 GBP to £2,070 GBP

A
Cheapest Retailer
-
£1,084 GBP
$1,453 USD
Final sale: no returns
A
Retailer 2
-
£1,144 GBP
SGD 2,071 SGD
View
A
Retailer 3
-
£1,221 GBP
$1,636 USD
View
A
Retailer 4
-
£1,231 GBP
$1,650 USD
View
A
Retailer 5
-
£1,241 GBP
A$2,558 AUD
View
B+
Retailer 6
-
£1,518 GBP
€1,937 EUR
View
Retailer 7
-
£1,712 GBP
$2,294 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£2,070 GBP
View
Most Expensive
NZ Jewellers
6028c03c-c19c-4688-9f68-287673f424e6 · Sep 25
£3,138 GBP
$4,204 USD
View
Price last confirmed 36 days ago
8 more retailers have this diamond
Prices start from £1,084 GBPSave up to £986 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
£1,084 GBP