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Marquise|Lab Grown|IGI

0.51ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG436074423

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436074423

Diamond specifications and retailer prices

From $456 AUD
As of November 4, 2026
Save $1,924 AUD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,381 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG436074423 or 436074423. Listed at 15 retailers as of November 3, 2026, with prices from $456 to $2,381, a $1,924 spread on the same certified stone. MOH London lists it at $2,381. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074423
Dimensions7.68 × 4.24 × 2.73 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.68 mm4.24 mm0.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074423
Side View
Table 60.0%Crown 32.7°Girdle: STK-THKPavilion 42.6°Culet: NoneDepth 64.4%

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 4
Current: $2,381 AUD|Low: $456 AUD|High: $2,410 AUD|Avg: $1,196 AUD
MOH London
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
November 4, 2026
Retailer 12$456 AUD
Retailer 15$479 AUD
Retailer 6$535 AUD
Retailer 4$556 AUD
Retailer 5$594 AUD
Retailer 16$594 AUD
Retailer 8$813 AUD
Retailer 3$959 AUD
Retailer 10$1,073 AUD
Retailer 11$1,078 AUD
Retailer 9$1,132 AUD
Retailer 2$1,514 AUD
Retailer 13$1,742 AUD
Retailer 17$1,910 AUD
Retailer 7$2,170 AUD
Retailer 14$2,302 AUD
MOH London$2,381 AUD

31 data points across 17 retailers

15 retailers$456 AUD to $2,381 AUD

A
Cheapest Retailer
-
$456 AUD
A
Retailer 2
-
$479 AUD
View
B+
Retailer 3
-
$535 AUD
View
Final sale: no returns
B+
Retailer 4
-
$556 AUD
View
B+
Retailer 5
-
$594 AUD
View
Retailer 6
-
$594 AUD
View
Price last confirmed 11 days ago
B
Retailer 7
-
$959 AUD
View
B+
Retailer 8
-
$1,073 AUD
View
B+
Retailer 9
-
$1,078 AUD
View
B
Retailer 10
-
$1,514 AUD
View
B
Retailer 11
-
$1,742 AUD
View
B
Retailer 12
-
$1,910 AUD
View
B
Retailer 13
-
$2,170 AUD
View
B
Retailer 14
-
$2,302 AUD
View
Most Expensive
B
MOH London
LG436074423 · Nov 3
$2,381 AUD
£1,315 GBP
View
14 more retailers have this diamond
Prices start from $456 AUDSave up to $1,924 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
0.51ct Marquise
$456 AUD