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Marquise|Lab Grown|IGI

3.05ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG826608002

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826608002

Diamond specifications and retailer prices

From $4,192 AUD
£2,318 GBP
As of October 30, 2026
Save $6,491 AUD (61%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $10,683 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG826608002 or 826608002. Listed at 5 retailers as of October 30, 2026, with prices from $4,192 to $10,683, a $6,491 spread on the same certified stone. Taylor and Hart lists it at $10,683. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826608002
Dimensions14.87 × 7.41 × 4.79 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
14.87 mm7.41 mm3.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826608002
Side View
Table 60.0%Crown 38.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 64.6%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $4,192 AUD|Low: $4,166 AUD|High: $10,683 AUD|Avg: $6,605 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
October 30, 2026
Retailer 1$4,192 AUD
Retailer 3$4,359 AUD
Retailer 2$4,645 AUD
Retailer 4$8,754 AUD
Taylor and Hart$10,683 AUD

8 data points across 5 retailers

5 retailers$4,192 AUD to $10,683 AUD

A
Cheapest Retailer
-
$4,192 AUD
£2,318 GBP
A
Retailer 2
-
$4,359 AUD
$3,062 USD
View
A
Retailer 3
-
$4,645 AUD
$3,263 USD
View
B+
Retailer 4
-
$8,754 AUD
£4,842 GBP
View
Most Expensive
B+
Taylor and Hart
7486R2O · Oct 30
$10,683 AUD
$7,504 USD
View
4 more retailers have this diamond
Prices start from $4,192 AUDSave up to $6,491 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
3.05ct Marquise
$4,192 AUD