Marquise|Lab Grown|IGI

1.15ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG847672149

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847672149

Diamond specifications and retailer prices

From €305 EUR
£269 GBP
As of October 27, 2026
Save €294 EUR (49%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €600 EUR at Brilliant Earth · As of October 27, 2026
View at Brilliant Earth

About this 1.15ct lab-grown marquise diamond

This 1.15ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG847672149 or 847672149. Listed at 2 retailers as of October 27, 2026, with prices from €305 to €600, a €294 spread on the same certified stone. Brilliant Earth lists it at €600. 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

1.15
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847672149
Dimensions10.60 × 5.39 × 3.48 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.60 mm5.39 mm1.15 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847672149
Side View
Table 61.0%Crown 34.8°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 64.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: €600 EUR|Low: €305 EUR|High: €600 EUR|Avg: €453 EUR
Brilliant Earth
Retailer 2
October 27, 2026
Retailer 2€305 EUR
Brilliant Earth€600 EUR

1 data point across 2 retailers

2 retailers€305 EUR to €600 EUR

A
Cheapest Retailer
-
€305 EUR
£269 GBP
Most Expensive
B
Brilliant Earth
22321093A · Oct 27
€600 EUR
$670 USD
View
1 more retailer has this diamond
Prices start from €305 EURSave up to €294 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
1.15ct Marquise
€305 EUR