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Marquise|Lab Grown|IGI

4.05ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG805675448

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805675448

Diamond specifications and retailer prices

From $994 AUD
£550 GBP
As of November 2, 2026
Save $6,523 AUD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,517 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.05ct lab-grown marquise diamond

This 4.05ct lab-grown marquise sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805675448 or 805675448. Listed at 11 retailers as of October 31, 2026, with prices from $994 to $7,517, a $6,523 spread on the same certified stone. Brilliant Earth lists it at $7,517. 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

4.05
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805675448
Dimensions16.63 × 8.24 × 5.22 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.63 mm8.24 mm4.05 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805675448
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.3%

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: Nov 2
Current: $7,517 AUD|Low: $994 AUD|High: $7,517 AUD|Avg: $2,544 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2$994 AUD
Retailer 7$1,096 AUD
Retailer 3$1,401 AUD
Retailer 8$1,498 AUD
Retailer 9$1,775 AUD
Retailer 6$1,795 AUD
Retailer 4$1,807 AUD
Retailer 10$2,328 AUD
Retailer 11$2,935 AUD
Retailer 5$3,786 AUD
Brilliant Earth$7,517 AUD

13 data points across 11 retailers

11 retailers$994 AUD to $7,517 AUD

A
Cheapest Retailer
-
$994 AUD
£550 GBP
A
Retailer 2
-
$1,096 AUD
$770 USD
View
B+
Retailer 3
-
$1,401 AUD
$984 USD
View
A
Retailer 4
-
$1,498 AUD
€1,002 EUR
View
A
Retailer 5
-
$1,775 AUD
$1,247 USD
View
A
Retailer 6
-
$1,795 AUD
ZAR 20,368 ZAR
View
A
Retailer 7
-
$1,807 AUD
View
A
Retailer 8
-
$2,328 AUD
$1,635 USD
View
B+
Retailer 9
-
$2,935 AUD
$2,062 USD
View
B+
Retailer 10
-
$3,786 AUD
£2,094 GBP
View
Most Expensive
B
Brilliant Earth
22163598A · Oct 31
$7,517 AUD
$5,280 USD
View
10 more retailers have this diamond
Prices start from $994 AUDSave up to $6,523 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
4.05ct Marquise
$994 AUD