CaratHunter
Plans
Round|Natural|GIA

1.23ct J VS2 Round Natural Diamond

EX • J/VS2 • GIA 6243051354

Certificate GIA 6243051354

Diamond specifications and retailer prices

From £1,837 GBP
As of November 5, 2026
Save £2,184 GBP (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,022 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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6243051354. Listed at 16 retailers as of November 5, 2026, with prices from £1,837 to £4,022, a £2,184 spread on the same certified stone. NZ Jewellers lists it at £4,022. 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
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6243051354
Dimensions6.78 × 6.83 × 4.28 mm
L/W Ratio1.01
Key to symbols
Crystal, Pinpoint
Top View
6.78 mm6.83 mm1.23 ctJ / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6243051354
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 62.9%

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 5
Current: £4,022 GBP|Low: £1,626 GBP|High: £4,699 GBP|Avg: £2,415 GBP|-14.4%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 8£1,626 GBP
Retailer 4£1,837 GBP
Retailer 5£1,845 GBP
Retailer 12£1,861 GBP
Retailer 6£1,909 GBP
Retailer 3£2,092 GBP
Retailer 14£2,172 GBP
Retailer 2£2,193 GBP
Retailer 7£2,285 GBP
Retailer 16£2,352 GBP
Retailer 13£2,482 GBP
Retailer 15£2,482 GBP
Retailer 11£2,563 GBP
Retailer 9£2,627 GBP
Retailer 10£3,849 GBP
NZ Jewellers£4,022 GBP

34 data points across 16 retailers

16 retailers£1,837 GBP to £4,022 GBP

Retailer 1
-
£1,626 GBP
Price last confirmed 44 days ago
A
Retailer 2
-
£1,837 GBP
View
A
Retailer 3
-
£1,845 GBP
View
A
Retailer 4
-
£1,861 GBP
View
A
Retailer 5
-
£1,909 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,013 GBP
View
B+
Retailer 7
-
£2,092 GBP
View
B+
Retailer 8
-
£2,172 GBP
View
B+
Retailer 9
-
£2,193 GBP
View
B+
Retailer 10
-
£2,352 GBP
View
B+
Retailer 11
-
£2,482 GBP
View
B+
Retailer 12
-
£2,482 GBP
View
B+
Retailer 13
-
£2,563 GBP
View
B+
Retailer 14
-
£2,627 GBP
View
B
Retailer 15
-
£3,849 GBP
View
Most Expensive
B
NZ Jewellers
e30bc654-783f-448c-b25f-790a7aad39f7 · Nov 5
£4,022 GBP
$5,413 USD
View
15 more retailers have this diamond
Prices start from £1,837 GBPSave up to £2,184 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
£1,837 GBP