Radiant|Natural|IGI

1.23ct H IF Radiant Natural Diamond

VG • H/IF • IGI 713504083

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 713504083

Diamond specifications and retailer prices

From £3,071 GBP
As of November 4, 2026
Save £3,064 GBP (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £6,135 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural radiant diamond

This 1.23ct natural radiant sits in the classic one-carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 713504083. Listed at 19 retailers as of November 4, 2026, with prices from £3,071 to £6,135, a £3,064 spread on the same certified stone. NZ Jewellers lists it at £6,135. 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

1.23
Carat
H
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.4°
Pavilion angle29.8°
OriginNatural
Grading LabIGI
CertificateIGI 713504083
Dimensions6.47 × 5.41 × 3.79 mm
L/W Ratio1.20
Culet sizePointed
Top View
6.47 mm5.41 mm1.23 ctH / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 713504083
Side View
Table 70.0%Crown 50.4°Girdle: MED-STKPavilion 29.8°Culet: NoneDepth 70.1%

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 4
Current: £3,534 GBP|Low: £2,979 GBP|High: £5,676 GBP|Avg: £3,729 GBP|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 9£3,130 GBP
Retailer 5£3,137 GBP
Retailer 11£3,250 GBP
Retailer 4£3,325 GBP
Retailer 2£3,521 GBP
Retailer 10£3,521 GBP
Retailer 1£3,534 GBP
Retailer 3£3,633 GBP
Retailer 6£3,963 GBP
Retailer 12£4,063 GBP
Retailer 7£4,296 GBP
Retailer 8£5,593 GBP

35 data points across 12 retailers

19 retailers£3,071 GBP to £6,135 GBP

B+
Cheapest Retailer
-
£3,071 GBP
B+
Retailer 2
-
£3,092 GBP
View
B+
Retailer 3
-
£3,124 GBP
View
Retailer 4
-
£3,130 GBP
View
Price last confirmed 17 days ago
B+
Retailer 5
-
£3,137 GBP
View
B+
Retailer 6
-
£3,250 GBP
View
Final sale: no returns
B+
Retailer 7
-
£3,325 GBP
View
B+
Retailer 8
-
£3,493 GBP
View
B+
Retailer 9
-
£3,521 GBP
View
B+
Retailer 10
-
£3,521 GBP
View
Retailer 11
-
£3,521 GBP
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£3,534 GBP
View
B+
Retailer 13
-
£3,633 GBP
View
B+
Retailer 14
-
£3,963 GBP
View
B
Retailer 15
-
£4,063 GBP
View
B
Retailer 16
-
£4,087 GBP
View
B
Retailer 17
-
£4,296 GBP
View
B
Retailer 18
-
£5,593 GBP
View
Most Expensive
B
NZ Jewellers
7b86f5c4-49bd-465e-8937-cefd1b7d1b07 · Nov 5
£6,135 GBP
$8,211 USD
View
18 more retailers have this diamond
Prices start from £3,071 GBPSave up to £3,064 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.

B+
1.23ct Radiant
£3,071 GBP