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Round|Natural|IGI

1.09ct L IF Round Natural Diamond

EX • L/IF • IGI 480138340

Shape and cutting style on the report: Round brilliant

Certificate IGI 480138340

Diamond specifications and retailer prices

From £1,067 GBP
As of November 6, 2026
Save £1,855 GBP (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,921 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded L colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 480138340. Listed at 11 retailers as of November 5, 2026, with prices from £1,067 to £2,921, a £1,855 spread on the same certified stone. NZ Jewellers lists it at £2,921. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
L
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 480138340
Dimensions6.64 × 6.66 × 4.08 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.64 mm6.66 mm1.09 ctL / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 480138340
Side View
Table 55.5%Crown 34°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 61.3%

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 6
Current: £2,921 GBP|Low: £1,067 GBP|High: £2,921 GBP|Avg: £1,438 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£1,067 GBP
Retailer 8£1,111 GBP
Retailer 7£1,198 GBP
Retailer 12£1,198 GBP
Retailer 10£1,253 GBP
Retailer 4£1,256 GBP
Retailer 3£1,299 GBP
Retailer 11£1,382 GBP
Retailer 6£1,461 GBP
Retailer 5£1,623 GBP
Retailer 9£1,708 GBP
NZ Jewellers£2,921 GBP

22 data points across 12 retailers

11 retailers£1,067 GBP to £2,921 GBP

A
Cheapest Retailer
-
£1,067 GBP
A
Retailer 2
-
£1,111 GBP
View
A
Retailer 3
-
£1,198 GBP
View
A
Retailer 4
-
£1,253 GBP
View
A
Retailer 5
-
£1,256 GBP
View
A
Retailer 6
-
£1,299 GBP
View
A
Retailer 7
-
£1,382 GBP
View
A
Retailer 8
-
£1,461 GBP
View
B+
Retailer 9
-
£1,623 GBP
View
B+
Retailer 10
-
£1,708 GBP
View
Most Expensive
B
NZ Jewellers
1b62eddb-79c7-4d26-8cfc-3a26bb2c8e03 · Nov 5
£2,921 GBP
$3,932 USD
View
10 more retailers have this diamond
Prices start from £1,067 GBPSave up to £1,855 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
1.09ct Round
£1,067 GBP