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Marquise|Natural|IGI

0.78ct E SI1 Marquise Natural Diamond

VG • E/SI1 • IGI 733580226

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 733580226

Diamond specifications and retailer prices

From $1,710 AUD
$1,201 USD
As of October 31, 2026
Save $2,812 AUD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,521 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.78ct natural marquise diamond

This 0.78ct natural marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 733580226. Listed at 18 retailers as of October 30, 2026, with prices from $1,710 to $4,521, a $2,812 spread on the same certified stone. NZ Jewellers lists it at $4,521. 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

0.78
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle35.8°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 733580226
Dimensions9.38 × 4.75 × 3.09 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizePointed
Top View
9.38 mm4.75 mm0.78 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateIGI 733580226
Side View
Table 56.0%Crown 35.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 65.1%

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: Oct 31
Current: $4,521 AUD|Low: $1,567 AUD|High: $4,521 AUD|Avg: $2,358 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 8$1,710 AUD
Retailer 3$1,718 AUD
Retailer 12$1,854 AUD
Retailer 9$1,886 AUD
Retailer 10$2,014 AUD
Retailer 4$2,046 AUD
Retailer 11$2,140 AUD
Retailer 2$2,152 AUD
Retailer 6$2,396 AUD
Retailer 5$2,769 AUD
Retailer 7$3,413 AUD
NZ Jewellers$4,521 AUD

39 data points across 12 retailers

18 retailers$1,710 AUD to $4,521 AUD

A
Cheapest Retailer
-
$1,710 AUD
$1,201 USD
Final sale: no returns
A
Retailer 2
-
$1,718 AUD
$1,207 USD
View
Retailer 3
-
$1,854 AUD
$1,302 USD
View
Price last confirmed 40 days ago
A
Retailer 4
-
$1,854 AUD
$1,302 USD
View
A
Retailer 5
-
$1,854 AUD
$1,302 USD
View
A
Retailer 6
-
$1,886 AUD
$1,325 USD
View
A
Retailer 7
-
$1,939 AUD
$1,362 USD
View
A
Retailer 8
-
$2,014 AUD
$1,415 USD
View
A
Retailer 9
-
$2,046 AUD
$1,437 USD
View
Retailer 10
-
$2,140 AUD
$1,503 USD
View
Price last confirmed 38 days ago
A
Retailer 11
-
$2,140 AUD
$1,503 USD
View
A
Retailer 12
-
$2,152 AUD
£1,190 GBP
View
A
Retailer 13
-
$2,396 AUD
€1,603 EUR
View
B+
Retailer 14
-
$2,769 AUD
ZAR 31,419 ZAR
View
B
Retailer 15
-
$3,413 AUD
£1,888 GBP
View
Retailer 16
-
$4,521 AUD
$3,176 USD
View
Price last confirmed 41 days ago
B
Retailer 17
-
$4,521 AUD
$3,176 USD
View
Most Expensive
B
NZ Jewellers
738b0292-1683-4c83-bda0-9c6d7f1665b6 · Oct 30
$4,521 AUD
$3,176 USD
View
17 more retailers have this diamond
Prices start from $1,710 AUDSave up to $2,812 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
0.78ct Marquise
$1,710 AUD