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 $2,198 AUD
$1,544 USD
As of November 1, 2026
Save $1,424 AUD (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,637 AUD 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 November 1, 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,622 AUD|Low: $1,502 AUD|High: $4,214 AUD|Avg: $2,633 AUD|+19.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3$1,502 AUD
Retailer 5$1,960 AUD
Retailer 4$2,094 AUD
Retailer 2$2,198 AUD
Retailer 6$2,510 AUD
Retailer 7$3,470 AUD
Retailer 1$3,622 AUD
Retailer 8$4,214 AUD

22 data points across 8 retailers

11 retailers$2,198 AUD to $3,622 AUD

Retailer 1
-
$1,960 AUD
$1,377 USD
Price last confirmed 25 days ago
Retailer 2
-
$2,094 AUD
$1,471 USD
View
Price last confirmed 51 days ago
Retailer 3
-
$2,094 AUD
$1,471 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$2,094 AUD
$1,471 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$2,191 AUD
$1,539 USD
View
Price last confirmed 33 days ago
B+
Retailer 6
-
$2,198 AUD
$1,544 USD
View
Retailer 7
-
$2,416 AUD
$1,697 USD
View
Price last confirmed 56 days ago
Retailer 8
-
$2,416 AUD
$1,697 USD
View
Price last confirmed 33 days ago
B
Retailer 9
-
$3,622 AUD
€2,423 EUR
View
Retailer 10
-
$5,637 AUD
$3,960 USD
View
Price last confirmed 52 days ago
Most Expensive
NZ Jewellers
1dbe08b5-37fe-4c18-835d-c9d66fc0b887 · Sep 28
$5,637 AUD
$3,960 USD
View
Price last confirmed 35 days ago
10 more retailers have this diamond
Prices start from $2,198 AUDSave up to $1,424 AUD

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
$2,198 AUD