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Round|Lab Grown|IGI

0.51ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG341864712

Shape and cutting style on the report: Round brilliant

Certificate IGI LG341864712

Diamond specifications and retailer prices

From $182 AUD
$128 USD
As of October 29, 2026
Save $1,716 AUD (90%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,898 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG341864712 or 341864712. Listed at 8 retailers as of October 29, 2026, with prices from $182 to $1,898, a $1,716 spread on the same certified stone. MOH London lists it at $1,898. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG341864712
Dimensions5.09 × 5.14 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
The laboratory grown diamond described above is classified as Type IIa. Laserscribe on Girdle: "LAB GROWN LG 341864712"
Top View
5.09 mm5.14 mm0.51 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG341864712
Side View
Table 57.0%Crown 35.5°GirdlePavilion 41.1°Culet: NoneDepth 62.1%

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 29
Current: $1,898 AUD|Low: $182 AUD|High: $1,911 AUD|Avg: $608 AUD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 6$182 AUD
Retailer 5$212 AUD
Retailer 4$226 AUD
Retailer 2$422 AUD
Retailer 7$433 AUD
Retailer 10$498 AUD
Retailer 9$615 AUD
Retailer 3$727 AUD
Retailer 8$919 AUD
MOH London$1,898 AUD

19 data points across 10 retailers

8 retailers$182 AUD to $1,898 AUD

A
Cheapest Retailer
-
$182 AUD
$128 USD
A
Retailer 2
-
$212 AUD
$149 USD
View
A
Retailer 3
-
$226 AUD
$159 USD
View
A
Retailer 4
-
$422 AUD
€282 EUR
View
B+
Retailer 5
-
$433 AUD
$304 USD
View
B+
Retailer 6
-
$498 AUD
$350 USD
View
B+
Retailer 7
-
$727 AUD
$511 USD
View
Most Expensive
B
MOH London
LG_341864712 · Oct 29
$1,898 AUD
£1,050 GBP
View
7 more retailers have this diamond
Prices start from $182 AUDSave up to $1,716 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 Round
$182 AUD