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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 $395 SGD
$309 USD
As of October 31, 2026
Save $1,280 SGD (76%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,891 SGD 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 31, 2026, with a 324% 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
Colour
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: $1,676 SGD|Low: $337 SGD|High: $2,325 SGD|Avg: $960 SGD|-27.1%
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
November 1, 2026
Retailer 6$337 SGD
Retailer 15$395 SGD
Retailer 4$418 SGD
Retailer 2$491 SGD
Retailer 16$591 SGD
Retailer 12$594 SGD
Retailer 5$651 SGD
Retailer 10$695 SGD
Retailer 14$753 SGD
Retailer 9$800 SGD
Retailer 7$928 SGD
Retailer 11$1,012 SGD
Retailer 13$1,284 SGD
Retailer 8$1,412 SGD
Retailer 3$1,675 SGD
Retailer 1$1,676 SGD

44 data points across 16 retailers

23 retailers$395 SGD to $1,676 SGD

Retailer 1
-
$337 SGD
$264 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$395 SGD
$309 USD
View
Final sale: no returns
Retailer 3
-
$418 SGD
$327 USD
View
Price last confirmed 24 days ago
Retailer 4
-
$418 SGD
$327 USD
View
Price last confirmed 22 days ago
Retailer 5
-
$474 SGD
$371 USD
View
Price last confirmed 32 days ago
A
Retailer 6
-
$491 SGD
HK$3,000 HKD
View
Retailer 7
-
$550 SGD
$430 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$580 SGD
$454 USD
View
Price last confirmed 33 days ago
A
Retailer 9
-
$591 SGD
$462 USD
View
A
Retailer 10
-
$594 SGD
$465 USD
View
B+
Retailer 11
-
$651 SGD
$509 USD
View
A
Retailer 12
-
$695 SGD
€518 EUR
View
B+
Retailer 13
-
$753 SGD
$589 USD
View
B+
Retailer 14
-
$800 SGD
£493 GBP
View
Retailer 15
-
$928 SGD
$726 USD
View
Price last confirmed 8 days ago
B
Retailer 16
-
$1,012 SGD
A$1,218 AUD
View
B
Retailer 17
-
$1,284 SGD
$1,004 USD
View
B
Retailer 18
-
$1,344 SGD
$1,051 USD
View
Retailer 19
-
$1,344 SGD
$1,051 USD
View
Price last confirmed 22 days ago
B
Retailer 20
-
$1,412 SGD
View
B
Retailer 21
-
$1,675 SGD
$1,310 USD
View
B
Retailer 22
-
$1,676 SGD
£1,032 GBP
View
Most Expensive
NZ Jewellers
e96fc7f9-6724-485c-94e8-08556ca16bb8 · Sep 30
$1,891 SGD
$1,479 USD
View
Price last confirmed 32 days ago
22 more retailers have this diamond
Prices start from $395 SGDSave up to $1,280 SGD

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
$395 SGD