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Oval|Lab Grown|IGI

0.51ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG814637983

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG814637983

Diamond specifications and retailer prices

From $137 AUD
As of November 5, 2026
Save $1,103 AUD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,240 AUD at MOH London · As of November 2, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG814637983 or 814637983. Listed at 14 retailers as of November 2, 2026, with prices from $137 to $1,240, a $1,103 spread on the same certified stone. MOH London lists it at $1,240. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryFair
FluorescenceNone
Crown angle33.3°
Pavilion angle43.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814637983
Dimensions6.26 × 4.57 × 2.86 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.26 mm4.57 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryFair
FluorescenceNone
CertificateIGI LG814637983
Side View
Table 66.0%Crown 33.3°Girdle: THN-STKPavilion 43.1°Culet: NoneDepth 62.6%

Caratlytics Score

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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: Nov 5
Current: $1,240 AUD|Low: $137 AUD|High: $1,255 AUD|Avg: $424 AUD|-0.1%
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
November 6, 2026
Retailer 3$137 AUD
Retailer 9$157 AUD
Retailer 10$179 AUD
Retailer 11$179 AUD
Retailer 5$230 AUD
Retailer 7$255 AUD
Retailer 2$314 AUD
Retailer 8$323 AUD
Retailer 6$387 AUD
Retailer 13$485 AUD
Retailer 12$543 AUD
Retailer 4$616 AUD
MOH London$1,240 AUD

43 data points across 13 retailers

14 retailers$137 AUD to $1,240 AUD

A
Cheapest Retailer
-
$137 AUD
A
Retailer 2
-
$157 AUD
View
Retailer 3
-
$179 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$179 AUD
View
A
Retailer 5
-
$230 AUD
View
A
Retailer 6
-
$255 AUD
View
B+
Retailer 7
-
$314 AUD
View
A
Retailer 8
-
$323 AUD
View
B+
Retailer 9
-
$387 AUD
View
B+
Retailer 10
-
$485 AUD
View
B
Retailer 11
-
$543 AUD
View
B
Retailer 12
-
$568 AUD
View
B
Retailer 13
-
$616 AUD
View
Most Expensive
B
MOH London
LG814637983 · Nov 2
$1,240 AUD
£671 GBP
View
13 more retailers have this diamond
Prices start from $137 AUDSave up to $1,103 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
$137 AUD