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Round|Natural|IGI

1.03ct F SI2 Round Natural Diamond

EX • F/SI2 • IGI 847685815

Shape and cutting style on the report: Round brilliant

Certificate IGI 847685815

Diamond specifications and retailer prices

From £1,139 GBP
As of November 6, 2026
Save £2,028 GBP (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,166 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 847685815. Listed at 15 retailers as of November 5, 2026, with prices from £1,139 to £3,166, a £2,028 spread on the same certified stone. NZ Jewellers lists it at £3,166. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 847685815
Dimensions6.43 × 6.47 × 4.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.43 mm6.47 mm1.03 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 847685815
Side View
Table 57.0%Crown 35.6°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.5%

Caratlytics Score

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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: £3,166 GBP|Low: £1,139 GBP|High: £3,204 GBP|Avg: £1,700 GBP|-1.2%
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
November 6, 2026
Retailer 2£1,139 GBP
Retailer 4£1,330 GBP
Retailer 8£1,369 GBP
Retailer 11£1,369 GBP
Retailer 13£1,381 GBP
Retailer 6£1,398 GBP
Retailer 12£1,514 GBP
Retailer 7£1,522 GBP
Retailer 3£1,584 GBP
Retailer 5£1,747 GBP
Retailer 10£1,750 GBP
Retailer 9£1,944 GBP
Retailer 15£2,194 GBP
Retailer 14£2,646 GBP
NZ Jewellers£3,166 GBP

9 data points across 15 retailers

15 retailers£1,139 GBP to £3,166 GBP

A
Cheapest Retailer
-
£1,139 GBP
A
Retailer 2
-
£1,330 GBP
View
A
Retailer 3
-
£1,369 GBP
View
A
Retailer 4
-
£1,369 GBP
View
A
Retailer 5
-
£1,381 GBP
View
A
Retailer 6
-
£1,398 GBP
View
Final sale: no returns
A
Retailer 7
-
£1,514 GBP
View
A
Retailer 8
-
£1,522 GBP
View
A
Retailer 9
-
£1,584 GBP
View
A
Retailer 10
-
£1,747 GBP
View
A
Retailer 11
-
£1,750 GBP
View
A
Retailer 12
-
£1,944 GBP
View
B+
Retailer 13
-
£2,194 GBP
View
B
Retailer 14
-
£2,646 GBP
View
Most Expensive
B
NZ Jewellers
5a8f0b1c-6743-472d-b391-9b532b2b0e84 · Nov 5
£3,166 GBP
$4,238 USD
View
14 more retailers have this diamond
Prices start from £1,139 GBPSave up to £2,028 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
1.03ct Round
£1,139 GBP