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Round|Natural|IGI

1.00ct M I1 Round Natural Diamond

VG • M/I1 • IGI 462152897

Shape and cutting style on the report: Round brilliant

Certificate IGI 462152897

Diamond specifications and retailer prices

From £603 GBP
As of November 5, 2026
Save £1,288 GBP (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,892 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 M colour (faint-tinted) and I1 clarity (included), with a very-good cut grade and certified by IGI 462152897. Listed at 7 retailers as of November 5, 2026, with prices from £603 to £1,892, a £1,288 spread on the same certified stone. NZ Jewellers lists it at £1,892. 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
M
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.1°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 462152897
Dimensions6.21 × 6.30 × 3.98 mm
L/W Ratio1.01
Girdle conditionPARTLY FACETED
Culet sizePointed
Cert comments
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Top View
6.21 mm6.30 mm1.00 ctM / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 462152897
Side View
Table 63.0%Crown 38.1°GirdlePavilion 41.5°Culet: NoneDepth 63.4%

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 5
Current: £1,892 GBP|Low: £467 GBP|High: £2,040 GBP|Avg: £823 GBP|-7.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 9£467 GBP
Retailer 3£603 GBP
Retailer 5£603 GBP
Retailer 6£611 GBP
Retailer 4£626 GBP
Retailer 7£696 GBP
Retailer 8£773 GBP
Retailer 2£847 GBP
NZ Jewellers£1,892 GBP

25 data points across 9 retailers

7 retailers£603 GBP to £1,892 GBP

B+
Cheapest Retailer
-
£603 GBP
Retailer 2
-
£603 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£611 GBP
View
B+
Retailer 4
-
£626 GBP
View
B+
Retailer 5
-
£696 GBP
View
B
Retailer 6
-
£847 GBP
View
Most Expensive
C
NZ Jewellers
c1679baa-3f33-4af2-a254-7923b9bd5492 · Nov 5
£1,892 GBP
$2,546 USD
View
6 more retailers have this diamond
Prices start from £603 GBPSave up to £1,288 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+
1.00ct Round
£603 GBP