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Marquise|Lab Grown|IGI

1.59ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG760572111

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG760572111

Diamond specifications and retailer prices

From €1,298 EUR
$1,450 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: €1,298 EUR at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.59ct lab-grown marquise diamond

This 1.59ct 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 LG760572111 or 760572111. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.59
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760572111
Dimensions12.49 × 6.06 × 3.77 mm
L/W Ratio2.06
Girdle conditionFaceted
Top View
12.49 mm6.06 mm1.59 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760572111
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: €1,298 EUR|Low: €239 EUR|High: €1,486 EUR|Avg: €755 EUR|+2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
April 14, 2026
Retailer 4€241 EUR
Retailer 7€377 EUR
Retailer 5€467 EUR
Retailer 3€586 EUR
Retailer 2€705 EUR
Retailer 6€824 EUR
Brilliant Earth€1,298 EUR

31 data points across 7 retailers

1 retailer

B
Brilliant Earth
17069469A · Oct 31
€1,298 EUR
$1,450 USD
View

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.

B
1.59ct Marquise
€1,298 EUR