Marquise|Lab Grown|IGI

1.50ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG835666080

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG835666080

Diamond specifications and retailer prices

From $221 USD
As of October 30, 2026
Save $876 USD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,097 USD at MOH London · As of October 26, 2026
View at MOH London

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 LG835666080 or 835666080. Listed at 8 retailers as of October 26, 2026, with prices from $221 to $1,097, a $876 spread on the same certified stone. MOH London lists it at $1,097. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835666080
Dimensions11.72 × 6.03 × 3.73 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.72 mm6.03 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835666080
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.9%

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: Oct 30
Current: $1,097 USD|Low: $219 USD|High: $1,147 USD|Avg: $601 USD|-4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 25, 2026
Retailer 6$221 USD
Retailer 3$256 USD
Retailer 5$306 USD
Retailer 2$459 USD
Retailer 8$602 USD
Retailer 7$879 USD
Retailer 4$883 USD
MOH London$1,097 USD

25 data points across 8 retailers

8 retailers$221 USD to $1,097 USD

A
Cheapest Retailer
-
$221 USD
A
Retailer 2
-
$256 USD
View
Retailer 3
-
$306 USD
£241 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$459 USD
€437 EUR
View
B+
Retailer 5
-
$602 USD
View
B
Retailer 6
-
$879 USD
View
B
Retailer 7
-
$883 USD
View
Most Expensive
B
MOH London
LG835666080 · Oct 26
$1,097 USD
£864 GBP
View
7 more retailers have this diamond
Prices start from $221 USDSave up to $876 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
$221 USD