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Marquise|Lab Grown|IGI

3.57ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG752562373

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG752562373

Diamond specifications and retailer prices

From €2,918 EUR
$3,260 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: €2,918 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 3.57ct lab-grown marquise diamond

This 3.57ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG752562373 or 752562373. 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

3.57
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752562373
Dimensions16.44 × 7.95 × 4.92 mm
L/W Ratio2.07
Girdle conditionFaceted
Top View
16.44 mm7.95 mm3.57 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752562373
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.9%

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: €2,918 EUR|Low: €451 EUR|High: €4,574 EUR|Avg: €1,806 EUR|-36.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
April 14, 2026
Retailer 3€451 EUR
Retailer 2€529 EUR
Retailer 4€745 EUR
Retailer 5€2,612 EUR
Brilliant Earth€2,918 EUR

29 data points across 5 retailers

1 retailer

B
Brilliant Earth
17057216A · Oct 31
€2,918 EUR
$3,260 USD
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B
3.57ct Marquise
€2,918 EUR