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Oval|Lab Grown|IGI

0.51ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG407936480

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG407936480

Diamond specifications and retailer prices

From $534 AUD
As of November 5, 2026
Save $648 AUD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,578 AUD at MOH London · As of November 5, 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 very-good cut grade and certified by IGI LG407936480 or 407936480. Listed at 13 retailers as of November 5, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle35.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407936480
Dimensions6.01 × 4.47 × 2.82 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.01 mm4.47 mm0.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407936480
Side View
Table 61.0%Crown 35.7°Girdle: THK-VTKPavilion 41.2°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,578 AUD|Low: $512 AUD|High: $2,617 AUD|Avg: $1,072 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$534 AUD
Retailer 6$568 AUD
Retailer 9$597 AUD
Retailer 7$662 AUD
Retailer 10$662 AUD
Retailer 8$1,057 AUD
Retailer 2$1,182 AUD
Retailer 3$1,182 AUD
Retailer 4$1,942 AUD
MOH London$2,578 AUD

46 data points across 10 retailers

13 retailers$534 AUD to $1,182 AUD

B+
Cheapest Retailer
-
$534 AUD
B
Retailer 2
-
$568 AUD
View
B
Retailer 3
-
$597 AUD
View
Final sale: no returns
B
Retailer 4
-
$619 AUD
View
B
Retailer 5
-
$662 AUD
View
Retailer 6
-
$662 AUD
View
Price last confirmed 12 days ago
B
Retailer 7
-
$1,057 AUD
View
B
Retailer 8
-
$1,182 AUD
View
B
Retailer 9
-
$1,182 AUD
View
Retailer 10
-
$1,942 AUD
View
Price under review
Retailer 11
-
$2,128 AUD
View
Price under review
Retailer 12
-
$2,342 AUD
View
Price under review
Most Expensive
MOH London
LG407936480 · Nov 5
$2,578 AUD
£1,395 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $534 AUDSave up to $648 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.

B+
0.51ct Oval
$534 AUD