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Round|Natural|IGI

1.25ct J IF Round Natural Diamond

EX • J/IF • IGI 680557954

Shape and cutting style on the report: Round brilliant

Certificate IGI 680557954

Diamond specifications and retailer prices

From £2,174 GBP
As of November 5, 2026
Save £2,093 GBP (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,267 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 680557954. Listed at 13 retailers as of November 5, 2026, with prices from £2,174 to £4,267, a £2,093 spread on the same certified stone. NZ Jewellers lists it at £4,267. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 680557954
Dimensions6.85 × 6.88 × 4.32 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.85 mm6.88 mm1.25 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 680557954
Side View
Table 57.0%Crown 36.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 63.0%

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: £4,267 GBP|Low: £2,174 GBP|High: £4,267 GBP|Avg: £2,771 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 14£2,174 GBP
Retailer 2£2,182 GBP
Retailer 13£2,260 GBP
Retailer 12£2,372 GBP
Retailer 5£2,449 GBP
Retailer 6£2,449 GBP
Retailer 7£2,550 GBP
Retailer 3£2,557 GBP
Retailer 4£2,826 GBP
Retailer 8£2,832 GBP
Retailer 10£2,845 GBP
Retailer 9£2,989 GBP
Retailer 11£4,084 GBP
NZ Jewellers£4,267 GBP

5 data points across 14 retailers

13 retailers£2,174 GBP to £4,267 GBP

A
Cheapest Retailer
-
£2,174 GBP
A
Retailer 2
-
£2,182 GBP
View
A
Retailer 3
-
£2,260 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,372 GBP
View
A
Retailer 5
-
£2,543 GBP
View
A
Retailer 6
-
£2,550 GBP
View
A
Retailer 7
-
£2,557 GBP
View
A
Retailer 8
-
£2,826 GBP
View
A
Retailer 9
-
£2,832 GBP
View
A
Retailer 10
-
£2,845 GBP
View
B+
Retailer 11
-
£2,989 GBP
View
B
Retailer 12
-
£4,084 GBP
View
Most Expensive
B
NZ Jewellers
8728e94e-7c41-4d48-b22a-51468128cfe2 · Nov 5
£4,267 GBP
$5,711 USD
View
12 more retailers have this diamond
Prices start from £2,174 GBPSave up to £2,093 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
1.25ct Round
£2,174 GBP