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Round|Natural|IGI

1.00ct J IF Round Natural Diamond

VG • J/IF • IGI 467133077

Shape and cutting style on the report: Round brilliant

Certificate IGI 467133077

Diamond specifications and retailer prices

From £1,415 GBP
As of November 6, 2026
Save £1,860 GBP (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,275 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 467133077. Listed at 15 retailers as of November 5, 2026, with prices from £1,415 to £3,275, a £1,860 spread on the same certified stone. NZ Jewellers lists it at £3,275. 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

1.00
Carat
J
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.8°
OriginNatural
Grading LabIGI
CertificateIGI 467133077
Dimensions6.25 × 6.29 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.25 mm6.29 mm1.00 ctJ / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 467133077
Side View
Table 51.5%Crown 35.6°Girdle: UNDPavilion 39.8°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,830 GBP|Low: £1,404 GBP|High: £2,777 GBP|Avg: £1,850 GBP|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 9£1,420 GBP
Retailer 8£1,445 GBP
Retailer 2£1,567 GBP
Retailer 3£1,586 GBP
Retailer 10£1,639 GBP
Retailer 6£1,722 GBP
Retailer 1£1,830 GBP
Retailer 5£1,912 GBP
Retailer 4£2,124 GBP
Retailer 11£2,216 GBP
Retailer 7£2,737 GBP

42 data points across 11 retailers

15 retailers£1,415 GBP to £3,275 GBP

A
Cheapest Retailer
-
£1,415 GBP
A
Retailer 2
-
£1,445 GBP
View
Final sale: no returns
Retailer 3
-
£1,455 GBP
View
Price last confirmed 109 days ago
A
Retailer 4
-
£1,567 GBP
View
A
Retailer 5
-
£1,586 GBP
View
A
Retailer 6
-
£1,639 GBP
View
A
Retailer 7
-
£1,669 GBP
View
A
Retailer 8
-
£1,722 GBP
View
B+
Retailer 9
-
£1,808 GBP
View
A
Retailer 10
-
£1,830 GBP
View
A
Retailer 11
-
£1,912 GBP
View
B+
Retailer 12
-
£2,124 GBP
View
B+
Retailer 13
-
£2,216 GBP
View
B
Retailer 14
-
£2,737 GBP
View
Most Expensive
B
NZ Jewellers
74c3bdac-e112-41a6-8f1d-d648e37aacd8 · Nov 5
£3,275 GBP
$4,408 USD
View
14 more retailers have this diamond
Prices start from £1,415 GBPSave up to £1,860 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
1.00ct Round
£1,415 GBP