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Marquise|Natural|IGI

3.00ct G SI1 Marquise Natural Diamond

VG • G/SI1

Diamond specifications and retailer prices

From $46,017 AUD
As of November 4, 2026
Save $21,914 AUD (32%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $67,931 AUD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 3ct natural marquise diamond

This 3ct natural marquise sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI. Listed at 2 retailers as of November 4, 2026, with prices from $46,017 to $67,931, a $21,914 spread on the same certified stone. Helzberg Diamonds lists it at $67,931. 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

3.00
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
Dimensions13.91 × 7.54 mm
L/W Ratio1.84
Top View
13.91 mm7.54 mm3.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: THN-STKPavilionCuletDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: $67,931 AUD|Low: $46,017 AUD|High: $72,932 AUD|Avg: $59,179 AUD|-6.9%
Helzberg Diamonds
Retailer 2
November 4, 2026
Retailer 2$46,017 AUD
Helzberg Diamonds$67,931 AUD

4 data points across 2 retailers

2 retailers$46,017 AUD to $67,931 AUD

B+
Cheapest Retailer
-
$46,017 AUD
Most Expensive
B
Helzberg Diamonds
ZXZOHPMKIIML · Nov 6
$67,931 AUD
$46,675 USD
View
1 more retailer has this diamond
Prices start from $46,017 AUDSave up to $21,914 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+
3.00ct Marquise
$46,017 AUD