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Marquise|Lab Grown|IGI

0.51ct I SI2 Marquise Lab Grown Diamond

VG • I/SI2 • IGI LG442067279

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG442067279

Diamond specifications and retailer prices

From $347 AUD
$244 USD
As of November 2, 2026
Save $1,385 AUD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,732 AUD at MOH London · As of October 29, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG442067279 or 442067279. Listed at 10 retailers as of October 29, 2026, with prices from $347 to $1,732, a $1,385 spread on the same certified stone. MOH London lists it at $1,732. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.6°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442067279
Dimensions8.76 × 4.14 × 2.50 mm
L/W Ratio2.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.76 mm4.14 mm0.51 ctI / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG442067279
Side View
Table 62.0%Crown 33.6°Girdle: THN-STKPavilion 42°Culet: NoneDepth 60.4%

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 2
Current: $1,732 AUD|Low: $333 AUD|High: $1,745 AUD|Avg: $824 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 6$347 AUD
Retailer 10$403 AUD
Retailer 7$430 AUD
Retailer 11$430 AUD
Retailer 2$456 AUD
Retailer 9$723 AUD
Retailer 4$816 AUD
Retailer 3$854 AUD
Retailer 8$1,382 AUD
Retailer 5$1,387 AUD
MOH London$1,732 AUD

22 data points across 11 retailers

10 retailers$347 AUD to $1,732 AUD

A
Cheapest Retailer
-
$347 AUD
$244 USD
B+
Retailer 2
-
$403 AUD
$283 USD
View
Retailer 3
-
$430 AUD
$302 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$430 AUD
$302 USD
View
B+
Retailer 5
-
$456 AUD
$320 USD
View
B
Retailer 6
-
$723 AUD
$508 USD
View
Retailer 7
-
$816 AUD
€546 EUR
View
Price last confirmed 8 days ago
B
Retailer 8
-
$1,382 AUD
$971 USD
View
B
Retailer 9
-
$1,387 AUD
$974 USD
View
Most Expensive
B
MOH London
LG442067279 · Oct 29
$1,732 AUD
£958 GBP
View
9 more retailers have this diamond
Prices start from $347 AUDSave up to $1,385 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
$347 AUD