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Marquise|Natural|IGI

3.06ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 754548185

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 754548185

Diamond specifications and retailer prices

From $16,915 AUD
As of November 6, 2026
Save $9,095 AUD (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $26,010 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3.06ct natural marquise diamond

This 3.06ct natural marquise sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 754548185. Listed at 3 retailers as of November 4, 2026, with prices from $16,915 to $26,010, a $9,095 spread on the same certified stone. MOH London lists it at $26,010. 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

3.06
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle37.1°
OriginNatural
Grading LabIGI
CertificateIGI 754548185
Dimensions15.06 × 7.58 × 4.60 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizePointed
Top View
15.06 mm7.58 mm3.06 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 754548185
Side View
Table 60.0%Crown 36.2°Girdle: MED-THKPavilion 37.1°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $26,010 AUD|Low: $16,724 AUD|High: $26,395 AUD|Avg: $20,790 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3$16,915 AUD
Retailer 4$19,160 AUD
Retailer 2$20,921 AUD
MOH London$26,010 AUD

28 data points across 4 retailers

3 retailers$16,915 AUD to $26,010 AUD

A
Cheapest Retailer
-
$16,915 AUD
B+
Retailer 2
-
$20,921 AUD
View
Most Expensive
B+
MOH London
17AC4CA3D · Nov 4
$26,010 AUD
£14,072 GBP
View
2 more retailers have this diamond
Prices start from $16,915 AUDSave up to $9,095 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
3.06ct Marquise
$16,915 AUD