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6.09ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 654416628

Shape and cutting style on the report: Round brilliant

Certificate IGI 654416628

Diamond specifications and retailer prices

From $43,928 AUD
As of November 5, 2026
Save $10,352 AUD (19%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $54,280 AUD at Aurelinne · As of November 5, 2026
View at Aurelinne

About this 6.09ct natural round diamond

This 6.09ct natural round sits in the over five carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 654416628. Listed at 10 retailers as of November 5, 2026, with prices from $43,928 to $54,280, a $10,352 spread on the same certified stone. Aurelinne lists it at $54,280. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.09
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle34.8°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 654416628
Dimensions11.63 × 11.72 × 7.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
11.63 mm11.72 mm6.09 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 654416628
Side View
Table 56.0%Crown 34.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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 5
Current: $54,280 AUD|Low: $42,585 AUD|High: $54,280 AUD|Avg: $48,826 AUD|+3.4%
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$43,928 AUD
Retailer 11$44,642 AUD
Retailer 8$45,533 AUD
Retailer 3$46,855 AUD
Retailer 2$47,260 AUD
Retailer 10$48,249 AUD
Retailer 9$50,662 AUD
Retailer 7$52,270 AUD
Retailer 4$52,522 AUD
Retailer 5$52,859 AUD
Aurelinne$54,280 AUD

17 data points across 11 retailers

10 retailers$43,928 AUD to $54,280 AUD

A
Cheapest Retailer
-
$43,928 AUD
A
Retailer 2
-
$44,642 AUD
View
A
Retailer 3
-
$45,533 AUD
View
B+
Retailer 4
-
$46,855 AUD
View
A
Retailer 5
-
$47,260 AUD
View
B+
Retailer 6
-
$50,662 AUD
View
B+
Retailer 7
-
$52,270 AUD
View
B+
Retailer 8
-
$52,522 AUD
View
B+
Retailer 9
-
$52,859 AUD
View
Most Expensive
B+
Aurelinne
f10e35c6-5384-4a44-af98-122d689a1baa · Nov 5
$54,280 AUD
$37,998 USD
View
9 more retailers have this diamond
Prices start from $43,928 AUDSave up to $10,352 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
6.09ct Round
$43,928 AUD