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Oval|Lab Grown|IGI

0.51ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG445037644

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037644

Diamond specifications and retailer prices

From $347 AUD
$244 USD
As of October 29, 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 oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037644 or 445037644. 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. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037644
Dimensions6.45 × 4.45 × 2.75 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.45 mm4.45 mm0.51 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037644
Side View
Table 56.0%Crown 31.9°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 61.8%

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 29
Current: $1,732 AUD|Low: $333 AUD|High: $1,745 AUD|Avg: $775 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 9$387 AUD
Retailer 7$430 AUD
Retailer 10$430 AUD
Retailer 2$456 AUD
Retailer 8$723 AUD
Retailer 4$813 AUD
Retailer 11$854 AUD
Retailer 3$901 AUD
Retailer 5$1,387 AUD
MOH London$1,732 AUD

18 data points across 11 retailers

10 retailers$347 AUD to $1,732 AUD

A
Cheapest Retailer
-
$347 AUD
$244 USD
A
Retailer 2
-
$387 AUD
$272 USD
View
Final sale: no returns
A
Retailer 3
-
$403 AUD
$283 USD
View
B+
Retailer 4
-
$430 AUD
$302 USD
View
B+
Retailer 5
-
$430 AUD
$302 USD
View
A
Retailer 6
-
$456 AUD
$320 USD
View
B+
Retailer 7
-
$723 AUD
$508 USD
View
B
Retailer 8
-
$1,382 AUD
$971 USD
View
B
Retailer 9
-
$1,387 AUD
$974 USD
View
Most Expensive
B
MOH London
LG445037644 · 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 Oval
$347 AUD