CaratHunter
Plans
Round|Natural|IGI

1.23ct J VVS2 Round Natural Diamond

EX • J/VVS2 • IGI 713558118

Shape and cutting style on the report: Round brilliant

Certificate IGI 713558118

Diamond specifications and retailer prices

From £1,337 GBP
As of November 4, 2026
Save £2,274 GBP (63%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,610 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 713558118. Listed at 17 retailers as of November 4, 2026, with prices from £1,337 to £3,610, a £2,274 spread on the same certified stone. NZ Jewellers lists it at £3,610. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
J
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle34.1°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 713558118
Dimensions6.81 × 6.88 × 4.28 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.81 mm6.88 mm1.23 ctJ / VVS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 713558118
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 41.5°Culet: NoneDepth 62.4%

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 4
Current: £3,610 GBP|Low: £1,337 GBP|High: £3,610 GBP|Avg: £1,764 GBP|+14.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 10£1,337 GBP
Retailer 14£1,360 GBP
Retailer 3£1,366 GBP
Retailer 6£1,418 GBP
Retailer 4£1,480 GBP
Retailer 5£1,503 GBP
Retailer 12£1,548 GBP
Retailer 2£1,616 GBP
Retailer 7£1,707 GBP
Retailer 13£1,707 GBP
Retailer 8£1,806 GBP
Retailer 9£2,008 GBP
Retailer 11£2,586 GBP
NZ Jewellers£3,610 GBP

31 data points across 14 retailers

17 retailers£1,337 GBP to £3,610 GBP

A
Cheapest Retailer
-
£1,337 GBP
A
Retailer 2
-
£1,360 GBP
View
A
Retailer 3
-
£1,366 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,418 GBP
View
A
Retailer 5
-
£1,480 GBP
View
Retailer 6
-
£1,503 GBP
View
Price last confirmed 44 days ago
Retailer 7
-
£1,503 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£1,548 GBP
View
A
Retailer 9
-
£1,616 GBP
View
A
Retailer 10
-
£1,707 GBP
View
A
Retailer 11
-
£1,707 GBP
View
Retailer 12
-
£1,734 GBP
View
Price last confirmed 45 days ago
A
Retailer 13
-
£1,806 GBP
View
A
Retailer 14
-
£2,008 GBP
View
B+
Retailer 15
-
£2,586 GBP
View
Retailer 16
-
£3,142 GBP
View
Price last confirmed 46 days ago
Most Expensive
B
NZ Jewellers
d1a6d5df-5c40-4d8a-ba75-f1997e39c0de · Nov 5
£3,610 GBP
$4,859 USD
View
16 more retailers have this diamond
Prices start from £1,337 GBPSave up to £2,274 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
1.23ct Round
£1,337 GBP