CaratHunter
Plans
Marquise|Lab Grown|IGI

3.08ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG741598144

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG741598144

Diamond specifications and retailer prices

From $4,119 AUD
$2,830 USD
As of November 6, 2026
2 retailers carry this diamond
Most expensive: $4,119 AUD at Brilliant Earth
View at Brilliant Earth

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 LG741598144 or 741598144. Listed at 2 retailers as of November 6, 2026. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741598144
Dimensions14.75 × 7.69 × 4.72 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.75 mm7.69 mm3.08 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741598144
Side View
Table 60.0%Crown 34.6°Girdle: MediumPavilion 39.5°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,119 AUD|Low: $745 AUD|High: $7,248 AUD|Avg: $1,949 AUD|-43.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 29, 2026
Retailer 8$745 AUD
Retailer 3$808 AUD
Retailer 7$926 AUD
Retailer 5$1,071 AUD
Retailer 9$1,292 AUD
Retailer 10$1,435 AUD
Retailer 2$1,517 AUD
Retailer 4$1,681 AUD
Retailer 6$3,452 AUD
Brilliant Earth$4,119 AUD

69 data points across 10 retailers

2 retailers

Retailer 1
-
$3,452 AUD
Price last confirmed 90 days ago
Most Expensive
B
Brilliant Earth
18300364A · Nov 6
$4,119 AUD
$2,830 USD
View
1 more retailer has this diamond

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
3.08ct Marquise
$4,119 AUD