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Marquise|Lab Grown|IGI

2.99ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG757531851

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG757531851

Diamond specifications and retailer prices

From $686 USD
As of November 6, 2026
Save $976 USD (59%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,662 USD at MOH London · As of November 5, 2026
View at MOH London

About this 2.99ct lab-grown marquise diamond

This 2.99ct lab-grown marquise sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG757531851 or 757531851. Listed at 4 retailers as of November 5, 2026, with prices from $686 to $1,662, a $976 spread on the same certified stone. MOH London lists it at $1,662. 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

2.99
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757531851
Dimensions13.82 × 7.52 × 4.86 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.82 mm7.52 mm2.99 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757531851
Side View
Table 64.0%Crown 37°Girdle: STK-VTKPavilion 41.5°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,662 USD|Low: $655 USD|High: $1,822 USD|Avg: $1,147 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$655 USD
Retailer 3$686 USD
Retailer 2$758 USD
Retailer 4$789 USD
Retailer 5$1,297 USD
MOH London$1,662 USD
Retailer 7$1,675 USD
Retailer 6$1,822 USD

3 data points across 8 retailers

4 retailers$686 USD to $1,662 USD

B+
Cheapest Retailer
-
$686 USD
A
Retailer 2
-
$758 USD
View
B+
Retailer 3
-
$1,297 USD
View
Most Expensive
B
MOH London
LG757531851 · Nov 5
$1,662 USD
£1,309 GBP
View
3 more retailers have this diamond
Prices start from $686 USDSave up to $976 USD

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
2.99ct Marquise
$686 USD