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Marquise|Lab Grown|IGI

3.08ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG842607091

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842607091

Diamond specifications and retailer prices

From $578 AUD
$406 USD
As of October 31, 2026
Save $3,394 AUD (85%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,972 AUD at Brilliant Earth · As of October 30, 2026
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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG842607091 or 842607091. Listed at 3 retailers as of October 30, 2026, with prices from $578 to $3,972, a $3,394 spread on the same certified stone. Brilliant Earth lists it at $3,972. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842607091
Dimensions14.33 × 7.63 × 4.87 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.33 mm7.63 mm3.08 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842607091
Side View
Table 59.0%Crown 37.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $1,207 AUD|Low: $578 AUD|High: $1,257 AUD|Avg: $975 AUD|+3.5%
Retailer 1
Retailer 2
October 31, 2026
Retailer 2$578 AUD
Retailer 1$1,207 AUD

22 data points across 2 retailers

3 retailers$578 AUD to $3,972 AUD

A
Cheapest Retailer
-
$578 AUD
$406 USD
Final sale: no returns
A
Retailer 2
-
$1,207 AUD
£668 GBP
View
Most Expensive
B
Brilliant Earth
21714558A · Oct 30
$3,972 AUD
$2,790 USD
View
2 more retailers have this diamond
Prices start from $578 AUDSave up to $3,394 AUD

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
$578 AUD