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Oval|Lab Grown|IGI

0.51ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG436046400

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436046400

Diamond specifications and retailer prices

From $427 AUD
$300 USD
As of October 31, 2026
Save $1,842 AUD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,269 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046400 or 436046400. Listed at 12 retailers as of October 31, 2026, with prices from $427 to $2,269, a $1,842 spread on the same certified stone. MOH London lists it at $2,269. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046400
Dimensions6.37 × 4.51 × 2.83 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.37 mm4.51 mm0.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046400
Side View
Table 57.5%Crown 33.7°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.7%

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: Oct 31
Current: $2,269 AUD|Low: $363 AUD|High: $2,296 AUD|Avg: $900 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 3$427 AUD
Retailer 6$457 AUD
Retailer 9$510 AUD
Retailer 7$567 AUD
Retailer 10$567 AUD
Retailer 8$920 AUD
Retailer 2$1,011 AUD
Retailer 4$1,028 AUD
Retailer 5$1,660 AUD
MOH London$2,269 AUD

43 data points across 10 retailers

12 retailers$427 AUD to $2,269 AUD

A
Cheapest Retailer
-
$427 AUD
$300 USD
A
Retailer 2
-
$457 AUD
$321 USD
View
B+
Retailer 3
-
$510 AUD
$358 USD
View
Final sale: no returns
B+
Retailer 4
-
$530 AUD
$372 USD
View
B+
Retailer 5
-
$567 AUD
$398 USD
View
B+
Retailer 6
-
$567 AUD
$398 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$920 AUD
$646 USD
View
B
Retailer 8
-
$1,011 AUD
£559 GBP
View
B
Retailer 9
-
$1,028 AUD
€688 EUR
View
B
Retailer 10
-
$1,660 AUD
$1,166 USD
View
B
Retailer 11
-
$1,819 AUD
$1,278 USD
View
Most Expensive
B
MOH London
LG436046400 · Nov 1
$2,269 AUD
£1,255 GBP
View
11 more retailers have this diamond
Prices start from $427 AUDSave up to $1,842 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 Oval
$427 AUD