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Marquise|Lab Grown|IGI

3.08ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG834613101

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG834613101

Diamond specifications and retailer prices

From $376 USD
As of November 1, 2026
Save $402 USD (52%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $778 USD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 3.08ct lab-grown marquise diamond

This 3.08ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG834613101 or 834613101. Listed at 2 retailers as of November 1, 2026, with prices from $376 to $778, a $402 spread on the same certified stone. 77 Diamonds lists it at $778. 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

3.08
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG834613101
Dimensions14.45 × 7.66 × 4.85 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.45 mm7.66 mm3.08 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG834613101
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $778 USD|Low: $376 USD|High: $1,036 USD|Avg: $789 USD|-2.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$376 USD
Retailer 3$672 USD
77 Diamonds$778 USD
Retailer 4$1,036 USD

37 data points across 4 retailers

2 retailers$376 USD to $778 USD

A
Cheapest Retailer
-
$376 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
MQTVS7UKU5KDS · Nov 2
$778 USD
£613 GBP
View
1 more retailer has this diamond
Prices start from $376 USDSave up to $402 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
3.08ct Marquise
$376 USD