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Marquise|Natural|IGI

1.50ct L SI1 Marquise Natural Diamond

VG • L/SI1 • IGI 512234554

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 512234554

Diamond specifications and retailer prices

From $4,555 CAD
As of November 6, 2026
Save $1,867 CAD (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,422 CAD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 512234554. Listed at 8 retailers as of November 5, 2026, with prices from $4,555 to $6,422, a $1,867 spread on the same certified stone. Cape Diamonds lists it at $6,422. 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
L
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle45.4°
Pavilion angle30.3°
OriginNatural
Grading LabIGI
CertificateIGI 512234554
Dimensions10.58 × 6.21 × 3.32 mm
L/W Ratio1.70
Girdle conditionFaceted
Culet sizePointed
Top View
10.58 mm6.21 mm1.50 ctL / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 512234554
Side View
Table 66.0%Crown 45.4°Girdle: STK-VTKPavilion 30.3°Culet: NoneDepth 53.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,422 CAD|Low: $3,837 CAD|High: $6,467 CAD|Avg: $5,107 CAD|+2.6%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4$3,847 CAD
Retailer 5$4,555 CAD
Retailer 6$4,670 CAD
Retailer 2$4,830 CAD
Retailer 3$6,158 CAD
Cape Diamonds$6,422 CAD

42 data points across 6 retailers

8 retailers$4,555 CAD to $6,422 CAD

Retailer 1
-
$3,847 CAD
Price last confirmed 7 days ago
B
Retailer 2
-
$4,555 CAD
View
B
Retailer 3
-
$4,670 CAD
View
B
Retailer 4
-
$4,830 CAD
View
B
Retailer 5
-
$5,043 CAD
View
B
Retailer 6
-
$5,466 CAD
View
B
Retailer 7
-
$6,158 CAD
View
Most Expensive
B
Cape Diamonds
cert_512234554 · Nov 5
$6,422 CAD
ZAR 73,754 ZAR
View
7 more retailers have this diamond
Prices start from $4,555 CADSave up to $1,867 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.

B
1.50ct Marquise
$4,555 CAD