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Round|Natural|IGI

1.03ct H IF Round Natural Diamond

EX • H/IF • IGI 828654430

Shape and cutting style on the report: Round brilliant

Certificate IGI 828654430

Diamond specifications and retailer prices

From £2,255 GBP
As of November 4, 2026
Save £2,133 GBP (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,388 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 828654430. Listed at 11 retailers as of November 4, 2026, with prices from £2,255 to £4,388, a £2,133 spread on the same certified stone. MOH London lists it at £4,388. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
H
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 828654430
Dimensions6.40 × 6.44 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.40 mm6.44 mm1.03 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 828654430
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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 4
Current: £4,388 GBP|Low: £2,255 GBP|High: £4,523 GBP|Avg: £2,908 GBP|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 10£2,255 GBP
Retailer 6£2,277 GBP
Retailer 8£2,352 GBP
Retailer 11£2,466 GBP
Retailer 3£2,467 GBP
Retailer 7£2,532 GBP
Retailer 5£2,861 GBP
Retailer 2£2,887 GBP
Retailer 4£3,211 GBP
Retailer 9£3,874 GBP
MOH London£4,388 GBP

22 data points across 11 retailers

11 retailers£2,255 GBP to £4,388 GBP

A
Cheapest Retailer
-
£2,255 GBP
A
Retailer 2
-
£2,277 GBP
View
A
Retailer 3
-
£2,352 GBP
View
A
Retailer 4
-
£2,466 GBP
View
A
Retailer 5
-
£2,467 GBP
View
A
Retailer 6
-
£2,532 GBP
View
A
Retailer 7
-
£2,861 GBP
View
A
Retailer 8
-
£2,887 GBP
View
B+
Retailer 9
-
£3,211 GBP
View
B+
Retailer 10
-
£3,874 GBP
View
Most Expensive
B+
MOH London
9F44103C7 · Nov 4
£4,388 GBP
View
10 more retailers have this diamond
Prices start from £2,255 GBPSave up to £2,133 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
£2,255 GBP