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Marquise|Natural|IGI

1.50ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 794652736

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 794652736

Diamond specifications and retailer prices

From $3,496 AUD
As of November 5, 2026
Save $4,667 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,163 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 794652736. Listed at 16 retailers as of November 5, 2026, with prices from $3,496 to $8,163, a $4,667 spread on the same certified stone. NZ Jewellers lists it at $8,163. 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

1.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.6°
Pavilion angle34.9°
OriginNatural
Grading LabIGI
CertificateIGI 794652736
Dimensions11.06 × 5.98 × 3.61 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
Top View
11.06 mm5.98 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 794652736
Side View
Table 57.0%Crown 38.6°Girdle: STK-THKPavilion 34.9°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,163 AUD|Low: $3,496 AUD|High: $8,163 AUD|Avg: $4,567 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 4$3,496 AUD
Retailer 15$3,793 AUD
Retailer 16$3,850 AUD
Retailer 3$3,905 AUD
Retailer 14$3,905 AUD
Retailer 13$4,055 AUD
Retailer 7$4,110 AUD
Retailer 5$4,114 AUD
Retailer 12$4,141 AUD
Retailer 9$4,181 AUD
Retailer 6$4,506 AUD
Retailer 8$4,526 AUD
Retailer 2$4,554 AUD
Retailer 10$4,766 AUD
Retailer 11$6,823 AUD
NZ Jewellers$8,163 AUD

45 data points across 16 retailers

16 retailers$3,496 AUD to $8,163 AUD

A
Cheapest Retailer
-
$3,496 AUD
B+
Retailer 2
-
$3,793 AUD
View
B+
Retailer 3
-
$3,850 AUD
View
B+
Retailer 4
-
$3,905 AUD
View
Retailer 5
-
$3,905 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$4,055 AUD
View
B+
Retailer 7
-
$4,110 AUD
View
B+
Retailer 8
-
$4,114 AUD
View
B+
Retailer 9
-
$4,141 AUD
View
A
Retailer 10
-
$4,181 AUD
View
Retailer 11
-
$4,357 AUD
View
Price last confirmed 61 days ago
B+
Retailer 12
-
$4,506 AUD
View
A
Retailer 13
-
$4,554 AUD
View
B+
Retailer 14
-
$4,766 AUD
View
B+
Retailer 15
-
$6,823 AUD
View
Most Expensive
B
NZ Jewellers
bdb78874-8953-4380-b1bc-d46fbf9fb832 · Nov 5
$8,163 AUD
$5,609 USD
View
15 more retailers have this diamond
Prices start from $3,496 AUDSave up to $4,667 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
1.50ct Marquise
$3,496 AUD