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Marquise|Lab Grown|IGI

1.50ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG840628028

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840628028

Diamond specifications and retailer prices

From $564 NZD
As of November 4, 2026
Save $2,674 NZD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,238 NZD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG840628028 or 840628028. Listed at 10 retailers as of November 4, 2026, with prices from $564 to $3,238, a $2,674 spread on the same certified stone. Do Amore Diamonds lists it at $3,238. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840628028
Dimensions11.94 × 5.78 × 3.79 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.94 mm5.78 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840628028
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 65.6%

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 4
Current: $3,238 NZD|Low: $564 NZD|High: $3,238 NZD|Avg: $1,261 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 7$564 NZD
Retailer 2$585 NZD
Retailer 3$633 NZD
Retailer 9$811 NZD
Retailer 5$1,348 NZD
Retailer 8$1,557 NZD
Retailer 4$1,807 NZD
Retailer 6$1,861 NZD
Retailer 10$2,085 NZD
Do Amore Diamonds$3,238 NZD

5 data points across 10 retailers

10 retailers$564 NZD to $3,238 NZD

B+
Cheapest Retailer
-
$564 NZD
A
Retailer 2
-
$585 NZD
View
A
Retailer 3
-
$633 NZD
View
Retailer 4
-
$811 NZD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$1,348 NZD
View
B
Retailer 6
-
$1,557 NZD
View
B
Retailer 7
-
$1,807 NZD
View
B
Retailer 8
-
$1,861 NZD
View
Retailer 9
-
$2,085 NZD
View
Price last confirmed 11 days ago
Most Expensive
B
Do Amore Diamonds
27-1220E159A · Nov 6
$3,238 NZD
$1,820 USD
View
9 more retailers have this diamond
Prices start from $564 NZDSave up to $2,674 NZD

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
$564 NZD