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Marquise|Lab Grown|IGI

3.07ct G SI1 Marquise Lab Grown Diamond

EX • G/SI1 • IGI LG841697364

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841697364

Diamond specifications and retailer prices

From $375 USD
As of November 1, 2026
Save $1,865 USD (83%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,240 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.07ct lab-grown marquise diamond

This 3.07ct 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 LG841697364 or 841697364. Listed at 3 retailers as of October 31, 2026, with prices from $375 to $2,240, a $1,865 spread on the same certified stone. Brilliant Earth lists it at $2,240. 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

3.07
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841697364
Dimensions15.06 × 7.51 × 4.74 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.06 mm7.51 mm3.07 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841697364
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,240 USD|Low: $375 USD|High: $4,000 USD|Avg: $2,072 USD|-44.0%
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$375 USD
Retailer 2$776 USD
Brilliant Earth$2,240 USD

29 data points across 3 retailers

3 retailers$375 USD to $2,240 USD

A
Cheapest Retailer
-
$375 USD
Final sale: no returns
A
Retailer 2
-
$776 USD
£611 GBP
View
Most Expensive
B
Brilliant Earth
21704261A · Oct 31
$2,240 USD
View
2 more retailers have this diamond
Prices start from $375 USDSave up to $1,865 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
3.07ct Marquise
$375 USD