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Marquise|Lab Grown|IGI

0.75ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG757539651

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG757539651

Diamond specifications and retailer prices

From $450 USD
As of October 28, 2026
1 retailer carries this diamond
Only listing: $450 USD 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 0.75ct lab-grown marquise diamond

This 0.75ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG757539651 or 757539651. Listed at a single retailer as of October 28, 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

0.75
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757539651
Dimensions9.89 × 4.68 × 2.85 mm
L/W Ratio2.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.89 mm4.68 mm0.75 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757539651
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 60.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $450 USD|Low: $175 USD|High: $1,950 USD|Avg: $575 USD|-23.7%
Brilliant Earth
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April 14, 2026
Retailer 13$175 USD
Retailer 5$243 USD
Retailer 9$338 USD
Retailer 3$372 USD
Retailer 8$409 USD
Retailer 7$413 USD
Brilliant Earth$450 USD
Retailer 10$600 USD
Retailer 12$675 USD
Retailer 11$723 USD
Retailer 2$775 USD
Retailer 6$816 USD
Retailer 4$1,950 USD

50 data points across 13 retailers

1 retailer

B
Brilliant Earth
16956258A · Oct 28
$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
0.75ct Marquise
$450 USD