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Round|Natural|IGI

1.09ct I IF Round Natural Diamond

EX • I/IF • IGI 774652050

Shape and cutting style on the report: Round brilliant

Certificate IGI 774652050

Diamond specifications and retailer prices

From £1,870 GBP
As of October 30, 2026
Save £2,481 GBP (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,351 GBP at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 774652050. Listed at 8 retailers as of October 30, 2026, with prices from £1,870 to £4,351, a £2,481 spread on the same certified stone. NZ Jewellers lists it at £4,351. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 774652050
Dimensions6.60 × 6.66 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.60 mm6.66 mm1.09 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 774652050
Side View
Table 63.0%Crown 34.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.6%

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: Oct 30
Current: £4,351 GBP|Low: £1,864 GBP|High: £4,351 GBP|Avg: £2,491 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 4£1,870 GBP
Retailer 10£1,898 GBP
Retailer 8£2,082 GBP
Retailer 9£2,102 GBP
Retailer 7£2,105 GBP
Retailer 6£2,161 GBP
Retailer 11£2,187 GBP
Retailer 3£2,286 GBP
Retailer 2£2,421 GBP
Retailer 5£3,666 GBP
NZ Jewellers£4,351 GBP

31 data points across 11 retailers

8 retailers£1,870 GBP to £4,351 GBP

A
Cheapest Retailer
-
£1,870 GBP
A
Retailer 2
-
£2,082 GBP
$2,789 USD
View
A
Retailer 3
-
£2,102 GBP
$2,816 USD
View
A
Retailer 4
-
£2,105 GBP
$2,820 USD
View
A
Retailer 5
-
£2,161 GBP
$2,896 USD
View
A
Retailer 6
-
£2,421 GBP
€3,089 EUR
View
B+
Retailer 7
-
£3,666 GBP
View
Most Expensive
B
NZ Jewellers
98e813c2-6929-4268-80ea-67ec5cb8fc5d · Oct 30
£4,351 GBP
$5,830 USD
View
7 more retailers have this diamond
Prices start from £1,870 GBPSave up to £2,481 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
£1,870 GBP