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Round|Natural|IGI

1.05ct H IF Round Natural Diamond

EX • H/IF • IGI 828653329

Shape and cutting style on the report: Round brilliant

Certificate IGI 828653329

Diamond specifications and retailer prices

From £1,961 GBP
As of November 5, 2026
Save £2,603 GBP (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,565 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct 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 828653329. Listed at 18 retailers as of November 5, 2026, with prices from £1,961 to £4,565, a £2,603 spread on the same certified stone. NZ Jewellers lists it at £4,565. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
H
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 828653329
Dimensions6.45 × 6.48 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.45 mm6.48 mm1.05 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 828653329
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.6%

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: £4,565 GBP|Low: £1,961 GBP|High: £4,638 GBP|Avg: £2,903 GBP|-1.6%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 14£1,961 GBP
Retailer 5£2,326 GBP
Retailer 17£2,342 GBP
Retailer 3£2,406 GBP
Retailer 10£2,418 GBP
Retailer 18£2,522 GBP
Retailer 4£2,620 GBP
Retailer 9£2,620 GBP
Retailer 7£2,721 GBP
Retailer 8£2,728 GBP
Retailer 15£2,744 GBP
Retailer 13£2,863 GBP
Retailer 19£3,023 GBP
Retailer 2£3,034 GBP
Retailer 11£3,085 GBP
Retailer 12£3,198 GBP
Retailer 6£3,363 GBP
Retailer 16£4,370 GBP
NZ Jewellers£4,565 GBP

20 data points across 19 retailers

18 retailers£1,961 GBP to £4,565 GBP

A
Cheapest Retailer
-
£1,961 GBP
A
Retailer 2
-
£2,326 GBP
View
A
Retailer 3
-
£2,342 GBP
View
A
Retailer 4
-
£2,406 GBP
View
A
Retailer 5
-
£2,418 GBP
View
Final sale: no returns
A
Retailer 6
-
£2,522 GBP
View
Retailer 7
-
£2,620 GBP
View
Price last confirmed 7 days ago
A
Retailer 8
-
£2,620 GBP
View
A
Retailer 9
-
£2,721 GBP
View
A
Retailer 10
-
£2,728 GBP
View
A
Retailer 11
-
£2,744 GBP
View
A
Retailer 12
-
£2,863 GBP
View
A
Retailer 13
-
£3,023 GBP
View
A
Retailer 14
-
£3,034 GBP
View
B+
Retailer 15
-
£3,198 GBP
View
B+
Retailer 16
-
£3,363 GBP
View
B+
Retailer 17
-
£4,370 GBP
View
Most Expensive
B
NZ Jewellers
88cec751-9ac6-472a-bc66-d59c30f0368e · Nov 5
£4,565 GBP
$6,144 USD
View
17 more retailers have this diamond
Prices start from £1,961 GBPSave up to £2,603 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
1.05ct Round
£1,961 GBP