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Oval|Lab Grown|IGI

0.51ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • IGI LG407936479

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG407936479

Diamond specifications and retailer prices

From $413 AUD
$290 USD
As of October 31, 2026
Save $1,965 AUD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,377 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG407936479 or 407936479. Listed at 12 retailers as of October 31, 2026, with prices from $413 to $2,377, a $1,965 spread on the same certified stone. MOH London lists it at $2,377. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle36.2°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407936479
Dimensions6.09 × 4.53 × 2.84 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
6.09 mm4.53 mm0.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407936479
Side View
Table 61.5%Crown 36.2°Girdle: MED-STKPavilion 41.8°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: $2,377 AUD|Low: $413 AUD|High: $2,406 AUD|Avg: $1,085 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4$413 AUD
Retailer 7$478 AUD
Retailer 10$534 AUD
Retailer 8$594 AUD
Retailer 11$594 AUD
Retailer 9$958 AUD
Retailer 2$1,054 AUD
Retailer 5$1,069 AUD
Retailer 6$1,740 AUD
Retailer 3$2,167 AUD
MOH London$2,377 AUD

42 data points across 11 retailers

12 retailers$413 AUD to $2,377 AUD

A
Cheapest Retailer
-
$413 AUD
$290 USD
B+
Retailer 2
-
$478 AUD
$336 USD
View
B+
Retailer 3
-
$534 AUD
$375 USD
View
Final sale: no returns
B+
Retailer 4
-
$555 AUD
$390 USD
View
B+
Retailer 5
-
$594 AUD
$417 USD
View
Retailer 6
-
$594 AUD
$417 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$958 AUD
$673 USD
View
B
Retailer 8
-
$1,054 AUD
£583 GBP
View
B
Retailer 9
-
$1,740 AUD
$1,222 USD
View
B
Retailer 10
-
$1,908 AUD
$1,340 USD
View
B
Retailer 11
-
$2,167 AUD
$1,523 USD
View
Most Expensive
B
MOH London
LG407936479 · Nov 1
$2,377 AUD
£1,315 GBP
View
11 more retailers have this diamond
Prices start from $413 AUDSave up to $1,965 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
$413 AUD