Marquise|Lab Grown|IGI

1.39ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG844653474

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844653474

Diamond specifications and retailer prices

From €188 EUR
$210 USD
As of October 30, 2026
Save €734 EUR (80%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €922 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.39ct lab-grown marquise diamond

This 1.39ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG844653474 or 844653474. Listed at 3 retailers as of October 30, 2026, with prices from €188 to €922, a €734 spread on the same certified stone. Brilliant Earth lists it at €922. 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

1.39
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844653474
Dimensions11.62 × 5.87 × 3.64 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.62 mm5.87 mm1.39 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844653474
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €922 EUR|Low: €183 EUR|High: €1,316 EUR|Avg: €658 EUR|-29.9%
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3€188 EUR
Retailer 2€390 EUR
Brilliant Earth€922 EUR

19 data points across 3 retailers

3 retailers€188 EUR to €922 EUR

A
Cheapest Retailer
-
€188 EUR
$210 USD
Final sale: no returns
B+
Retailer 2
-
€390 EUR
£343 GBP
View
Most Expensive
B
Brilliant Earth
21829865A · Oct 31
€922 EUR
$1,030 USD
View
2 more retailers have this diamond
Prices start from €188 EURSave up to €734 EUR

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
1.39ct Marquise
€188 EUR