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Marquise|Lab Grown|IGI

1.50ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG549201506

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG549201506

Diamond specifications and retailer prices

From $432 CAD
$309 USD
As of October 31, 2026
Save $1,408 CAD (77%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,066 CAD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct lab-grown marquise diamond

This 1.5ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG549201506 or 549201506. Listed at 23 retailers as of October 29, 2026, with a 326% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG549201506
Dimensions12.30 × 5.98 × 3.61 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.30 mm5.98 mm1.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG549201506
Side View
Table 60.0%Crown 33.5°Girdle: MED-STKPavilion 39.2°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: Oct 31
Current: $874 CAD|Low: $369 CAD|High: $2,540 CAD|Avg: $1,053 CAD|-22.3%
Retailer 1
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
October 31, 2026
Retailer 6$369 CAD
Retailer 15$432 CAD
Retailer 4$457 CAD
Retailer 2$536 CAD
Retailer 16$645 CAD
Retailer 12$650 CAD
Retailer 5$711 CAD
Retailer 9$760 CAD
Retailer 14$823 CAD
Retailer 1$874 CAD
Retailer 7$1,014 CAD
Retailer 11$1,106 CAD
Retailer 13$1,402 CAD
Retailer 8$1,543 CAD
Retailer 3$1,830 CAD
Retailer 10$1,840 CAD

44 data points across 16 retailers

23 retailers$432 CAD to $1,840 CAD

Retailer 1
-
$369 CAD
$264 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$432 CAD
$309 USD
View
Final sale: no returns
Retailer 3
-
$457 CAD
$327 USD
View
Price last confirmed 22 days ago
Retailer 4
-
$457 CAD
$327 USD
View
Price last confirmed 20 days ago
Retailer 5
-
$518 CAD
$371 USD
View
Price last confirmed 31 days ago
A
Retailer 6
-
$536 CAD
HK$3,000 HKD
View
Retailer 7
-
$601 CAD
$430 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$634 CAD
$454 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
$645 CAD
$462 USD
View
A
Retailer 10
-
$650 CAD
$465 USD
View
B+
Retailer 11
-
$711 CAD
$509 USD
View
A
Retailer 12
-
$760 CAD
€518 EUR
View
B+
Retailer 13
-
$823 CAD
$589 USD
View
B+
Retailer 14
-
$874 CAD
£493 GBP
View
Retailer 15
-
$1,014 CAD
$726 USD
View
Price last confirmed 7 days ago
B
Retailer 16
-
$1,106 CAD
A$1,218 AUD
View
B
Retailer 17
-
$1,402 CAD
$1,004 USD
View
B
Retailer 18
-
$1,468 CAD
$1,051 USD
View
Retailer 19
-
$1,468 CAD
$1,051 USD
View
Price last confirmed 20 days ago
B
Retailer 20
-
$1,543 CAD
SGD 1,493 SGD
View
B
Retailer 21
-
$1,830 CAD
$1,310 USD
View
B
Retailer 22
-
$1,840 CAD
£1,037 GBP
View
Most Expensive
NZ Jewellers
e96fc7f9-6724-485c-94e8-08556ca16bb8 · Sep 30
$2,066 CAD
$1,479 USD
View
Price last confirmed 30 days ago
22 more retailers have this diamond
Prices start from $432 CADSave up to $1,408 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
$432 CAD