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Round|Natural|IGI

1.09ct I IF Round Natural Diamond

EX • I/IF • IGI 778651427

Shape and cutting style on the report: Round brilliant

Certificate IGI 778651427

Diamond specifications and retailer prices

From $3,442 AUD
₹230,282 INR
As of November 1, 2026
Save $5,351 AUD (61%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,794 AUD 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 778651427. Listed at 19 retailers as of October 30, 2026, with prices from $3,442 to $8,794, a $5,351 spread on the same certified stone. NZ Jewellers lists it at $8,794. 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 angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 778651427
Dimensions6.48 × 6.55 × 4.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.48 mm6.55 mm1.09 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 778651427
Side View
Table 55.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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 1
Current: $3,442 AUD|Low: $3,434 AUD|High: $7,310 AUD|Avg: $4,548 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 1$3,442 AUD
Retailer 3$3,767 AUD
Retailer 11$3,773 AUD
Retailer 9$3,881 AUD
Retailer 2$4,207 AUD
Retailer 10$4,207 AUD
Retailer 6$4,551 AUD
Retailer 8$4,872 AUD
Retailer 5$4,904 AUD
Retailer 7$5,170 AUD
Retailer 4$7,035 AUD

34 data points across 11 retailers

19 retailers$3,442 AUD to $8,794 AUD

A
Cheapest Retailer
-
$3,442 AUD
₹230,282 INR
A
Retailer 2
-
$3,767 AUD
$2,646 USD
View
A
Retailer 3
-
$3,773 AUD
$2,650 USD
View
A
Retailer 4
-
$3,881 AUD
$2,726 USD
View
Final sale: no returns
A
Retailer 5
-
$4,123 AUD
$2,896 USD
View
Retailer 6
-
$4,207 AUD
$2,955 USD
View
Price last confirmed 55 days ago
Retailer 7
-
$4,207 AUD
$2,955 USD
View
Price last confirmed 29 days ago
A
Retailer 8
-
$4,207 AUD
$2,955 USD
View
Retailer 9
-
$4,368 AUD
$3,068 USD
View
Price last confirmed 33 days ago
A
Retailer 10
-
$4,551 AUD
£2,517 GBP
View
A
Retailer 11
-
$4,872 AUD
£2,695 GBP
View
A
Retailer 12
-
$4,904 AUD
€3,281 EUR
View
Retailer 13
-
$4,983 AUD
$3,500 USD
View
Price last confirmed 55 days ago
Retailer 14
-
$4,983 AUD
$3,500 USD
View
Price last confirmed 33 days ago
A
Retailer 15
-
$5,170 AUD
ZAR 58,671 ZAR
View
B+
Retailer 16
-
$7,035 AUD
£3,891 GBP
View
Retailer 17
-
$7,524 AUD
$5,285 USD
View
Price last confirmed 61 days ago
Retailer 18
-
$7,524 AUD
$5,285 USD
View
Price last confirmed 35 days ago
Most Expensive
B
NZ Jewellers
c028d8c0-c3d6-4dfc-a48f-a91af3848ce8 · Oct 30
$8,794 AUD
$6,177 USD
View
18 more retailers have this diamond
Prices start from $3,442 AUDSave up to $5,351 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.

A
1.09ct Round
$3,442 AUD