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Marquise|Natural|IGI

0.73ct D SI1 Marquise Natural Diamond

GD • D/SI1 • IGI 823660730

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 823660730

Diamond specifications and retailer prices

From $1,761 AUD
$1,234 USD
As of October 29, 2026
Save $2,533 AUD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,294 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.73ct natural marquise diamond

This 0.73ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI 823660730. Listed at 9 retailers as of October 29, 2026, with prices from $1,761 to $4,294, a $2,533 spread on the same certified stone. NZ Jewellers lists it at $4,294. 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

0.73
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 823660730
Dimensions8.78 × 4.71 × 3.01 mm
L/W Ratio1.86
Girdle conditionFaceted
Top View
8.78 mm4.71 mm0.73 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 823660730
Side View
Table 62.0%Crown 33.2°Girdle: THK-ETKPavilion 40.8°Culet: NoneDepth 63.9%

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: Oct 29
Current: $4,294 AUD|Low: $1,761 AUD|High: $4,393 AUD|Avg: $2,416 AUD|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$1,761 AUD
Retailer 8$1,816 AUD
Retailer 5$1,828 AUD
Retailer 9$1,918 AUD
Retailer 6$1,919 AUD
Retailer 3$2,226 AUD
Retailer 2$2,390 AUD
Retailer 4$3,229 AUD
NZ Jewellers$4,294 AUD

43 data points across 9 retailers

9 retailers$1,761 AUD to $4,294 AUD

B+
Cheapest Retailer
-
$1,761 AUD
$1,234 USD
B+
Retailer 2
-
$1,816 AUD
$1,273 USD
View
B+
Retailer 3
-
$1,828 AUD
$1,281 USD
View
B+
Retailer 4
-
$1,918 AUD
$1,344 USD
View
B+
Retailer 5
-
$1,919 AUD
$1,345 USD
View
B
Retailer 6
-
$2,226 AUD
£1,229 GBP
View
B
Retailer 7
-
$2,390 AUD
€1,595 EUR
View
B
Retailer 8
-
$3,229 AUD
£1,782 GBP
View
Most Expensive
C
NZ Jewellers
4a942ac5-7484-4f5e-bb0c-3b9ba325f973 · Oct 30
$4,294 AUD
$3,009 USD
View
8 more retailers have this diamond
Prices start from $1,761 AUDSave up to $2,533 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+
0.73ct Marquise
$1,761 AUD