Round|Natural|IGI

1.09ct I I1 Round Natural Diamond

VG • I/I1 • IGI 750557180

Shape and cutting style on the report: Round brilliant

Certificate IGI 750557180

Diamond specifications and retailer prices

From £1,152 GBP
$1,544 USD
As of October 30, 2026
Save £746 GBP (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,955 GBP at NZ Jewellers · As of September 28, 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 I1 clarity (included), with a very-good cut grade and certified by IGI 750557180. Listed at 11 retailers as of October 30, 2026, with a 65% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
I
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33.3°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 750557180
Dimensions6.67 × 6.72 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeC
Cert comments
Surface grain lines present.
Top View
6.67 mm6.72 mm1.09 ctI / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 750557180
Side View
Table 56.0%Crown 33.3°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,899 GBP|Low: £787 GBP|High: £2,209 GBP|Avg: £1,380 GBP|+19.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3£787 GBP
Retailer 5£1,028 GBP
Retailer 4£1,098 GBP
Retailer 2£1,152 GBP
Retailer 6£1,316 GBP
Retailer 7£1,819 GBP
Retailer 1£1,899 GBP
Retailer 8£2,209 GBP

22 data points across 8 retailers

11 retailers£1,152 GBP to £1,899 GBP

Retailer 1
-
£1,028 GBP
$1,377 USD
Price last confirmed 25 days ago
Retailer 2
-
£1,098 GBP
$1,471 USD
View
Price last confirmed 51 days ago
Retailer 3
-
£1,098 GBP
$1,471 USD
View
Price last confirmed 24 days ago
Retailer 4
-
£1,098 GBP
$1,471 USD
View
Price last confirmed 24 days ago
Retailer 5
-
£1,149 GBP
$1,539 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
£1,152 GBP
$1,544 USD
View
Retailer 7
-
£1,267 GBP
$1,697 USD
View
Price last confirmed 55 days ago
Retailer 8
-
£1,267 GBP
$1,697 USD
View
Price last confirmed 32 days ago
B
Retailer 9
-
£1,899 GBP
€2,423 EUR
View
Retailer 10
-
£2,955 GBP
$3,960 USD
View
Price last confirmed 51 days ago
Most Expensive
NZ Jewellers
1dbe08b5-37fe-4c18-835d-c9d66fc0b887 · Sep 28
£2,955 GBP
$3,960 USD
View
Price last confirmed 34 days ago
10 more retailers have this diamond
Prices start from £1,152 GBPSave up to £746 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.

B+
1.09ct Round
£1,152 GBP