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Marquise|Natural|IGI

1.50ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 717509799

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 717509799

Diamond specifications and retailer prices

From $4,114 CAD
As of November 3, 2026
Save $2,945 CAD (42%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,749 CAD at NZ Jewellers · As of September 20, 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 717509799. Listed at 8 retailers as of November 1, 2026, with a 72% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle38.9°
OriginNatural
Grading LabIGI
CertificateIGI 717509799
Dimensions11.68 × 6.15 × 3.54 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Top View
11.68 mm6.15 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 717509799
Side View
Table 64.0%Crown 34.9°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 57.6%

Caratlytics Score

How it works →
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 3
Current: $4,117 CAD|Low: $3,967 CAD|High: $7,527 CAD|Avg: $4,810 CAD|-5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5$3,967 CAD
Retailer 3$4,114 CAD
Retailer 1$4,117 CAD
Retailer 4$4,120 CAD
Retailer 6$4,777 CAD
Retailer 2$7,060 CAD

28 data points across 6 retailers

8 retailers$4,114 CAD to $7,060 CAD

A
Cheapest Retailer
-
$4,114 CAD
A
Retailer 2
-
$4,117 CAD
View
Retailer 3
-
$4,425 CAD
View
Price last confirmed 30 days ago
Retailer 4
-
$4,448 CAD
View
Price last confirmed 44 days ago
Retailer 5
-
$4,595 CAD
View
Price last confirmed 36 days ago
B+
Retailer 6
-
$7,060 CAD
View
Retailer 7
-
$7,710 CAD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
87a6ab56-c4fd-44df-9712-8ece32cacbc5 · Sep 20
$7,749 CAD
$5,509 USD
View
Price last confirmed 46 days ago
7 more retailers have this diamond
Prices start from $4,114 CADSave up to $2,945 CAD

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
$4,114 CAD