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Marquise|Lab Grown|IGI

3.05ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG749505354

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG749505354

Diamond specifications and retailer prices

From $2,766 AUD
$1,943 USD
As of October 30, 2026
Save $8,467 AUD (75%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $11,233 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 LG749505354 or 749505354. Listed at 24 retailers as of October 30, 2026, with prices from $2,766 to $11,233, a $8,467 spread on the same certified stone. Taylor and Hart lists it at $11,233. 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 angle37.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749505354
Dimensions14.18 × 7.52 × 4.92 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.18 mm7.52 mm3.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749505354
Side View
Table 61.0%Crown 37.4°Girdle: STK-THKPavilion 41.5°Culet: NoneDepth 65.4%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $4,413 AUD|Low: $3,098 AUD|High: $11,244 AUD|Avg: $6,747 AUD|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Taylor and Hart
October 30, 2026
Retailer 16$3,378 AUD
Retailer 4$3,405 AUD
Retailer 18$3,445 AUD
Retailer 11$3,699 AUD
Retailer 1$4,413 AUD
Retailer 15$4,587 AUD
Retailer 5$4,691 AUD
Retailer 2$4,809 AUD
Retailer 14$5,064 AUD
Retailer 9$6,096 AUD
Retailer 17$7,257 AUD
Retailer 12$7,451 AUD
Retailer 3$7,948 AUD
Retailer 19$8,283 AUD
Retailer 10$9,090 AUD
Retailer 13$9,212 AUD
Retailer 7$9,617 AUD
Retailer 8$10,714 AUD
Retailer 6$10,848 AUD
Taylor and Hart$11,233 AUD

37 data points across 20 retailers

24 retailers$2,766 AUD to $11,233 AUD

A
Cheapest Retailer
-
$2,766 AUD
$1,943 USD
A
Retailer 2
-
$3,209 AUD
$2,254 USD
View
A
Retailer 3
-
$3,378 AUD
$2,373 USD
View
Final sale: no returns
A
Retailer 4
-
$3,405 AUD
$2,392 USD
View
A
Retailer 5
-
$3,445 AUD
$2,420 USD
View
A
Retailer 6
-
$3,699 AUD
HK$20,300 HKD
View
A
Retailer 7
-
$4,410 AUD
$3,098 USD
View
A
Retailer 8
-
$4,413 AUD
£2,441 GBP
View
A
Retailer 9
-
$4,587 AUD
$3,222 USD
View
A
Retailer 10
-
$4,691 AUD
$3,295 USD
View
A
Retailer 11
-
$4,809 AUD
$3,378 USD
View
A
Retailer 12
-
$5,064 AUD
€3,388 EUR
View
A
Retailer 13
-
$6,096 AUD
£3,372 GBP
View
Retailer 14
-
$7,257 AUD
View
Price last confirmed 9 days ago
A
Retailer 15
-
$7,451 AUD
ZAR 84,550 ZAR
View
A
Retailer 16
-
$7,948 AUD
$5,583 USD
View
A
Retailer 17
-
$8,283 AUD
$5,818 USD
View
B+
Retailer 18
-
$8,653 AUD
$6,078 USD
View
Retailer 19
-
$9,090 AUD
$6,385 USD
View
Price last confirmed 34 days ago
B+
Retailer 20
-
$9,212 AUD
£5,095 GBP
View
B+
Retailer 21
-
$9,617 AUD
$6,756 USD
View
B+
Retailer 22
-
$10,714 AUD
SGD 10,170 SGD
View
B+
Retailer 23
-
$10,848 AUD
$7,620 USD
View
Most Expensive
B+
Taylor and Hart
8NDQP6W · Oct 30
$11,233 AUD
$7,891 USD
View
23 more retailers have this diamond
Prices start from $2,766 AUDSave up to $8,467 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
$2,766 AUD