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Marquise|Lab Grown|IGI

1.50ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG838647497

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838647497

Diamond specifications and retailer prices

From $249 USD
As of October 30, 2026
Save $2,141 USD (90%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,390 USD at Do Amore Diamonds · As of October 31, 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 LG838647497 or 838647497. Listed at 7 retailers as of October 30, 2026, with prices from $249 to $2,390, a $2,141 spread on the same certified stone. Do Amore Diamonds lists it at $2,390. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838647497
Dimensions12.07 × 6.04 × 3.55 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.07 mm6.04 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG838647497
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 58.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,390 USD|Low: $436 USD|High: $2,390 USD|Avg: $1,121 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2$436 USD
Retailer 5$517 USD
Retailer 4$948 USD
Retailer 3$1,372 USD
Do Amore Diamonds$2,390 USD

12 data points across 5 retailers

7 retailers$249 USD to $2,390 USD

A
Cheapest Retailer
-
$249 USD
A
Retailer 2
-
$436 USD
£343 GBP
View
B+
Retailer 3
-
$517 USD
View
B
Retailer 4
-
$948 USD
View
B
Retailer 5
-
$1,372 USD
£1,080 GBP
View
B
Retailer 6
-
$1,710 USD
View
Most Expensive
B
Do Amore Diamonds
27-C91D2DA6C · Oct 31
$2,390 USD
View
6 more retailers have this diamond
Prices start from $249 USDSave up to $2,141 USD

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
$249 USD