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Radiant|Lab Grown|IGI

0.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG790630389

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG790630389

Diamond specifications and retailer prices

From $206 AUD
$145 USD
As of October 30, 2026
Save $1,003 AUD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,210 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790630389 or 790630389. Listed at 19 retailers as of October 29, 2026, with prices from $206 to $1,210, a $1,003 spread on the same certified stone. MOH London lists it at $1,210. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.2°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790630389
Dimensions5.56 × 3.91 × 2.72 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.56 mm3.91 mm0.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790630389
Side View
Table 67.0%Crown 50.2°Girdle: MediumPavilion 38.4°Culet: NoneDepth 69.6%

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 30
Current: $1,210 AUD|Low: $206 AUD|High: $1,269 AUD|Avg: $575 AUD|-4.7%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 2$206 AUD
Retailer 16$231 AUD
Retailer 8$243 AUD
Retailer 15$258 AUD
Retailer 7$261 AUD
Retailer 13$349 AUD
Retailer 14$443 AUD
Retailer 3$468 AUD
Retailer 11$475 AUD
Retailer 9$502 AUD
Retailer 10$641 AUD
Retailer 5$659 AUD
Retailer 4$685 AUD
Retailer 17$710 AUD
Retailer 18$820 AUD
Retailer 19$827 AUD
Retailer 6$878 AUD
Retailer 12$902 AUD
MOH London$1,210 AUD

19 data points across 19 retailers

19 retailers$206 AUD to $1,210 AUD

A
Cheapest Retailer
-
$206 AUD
$145 USD
A
Retailer 2
-
$231 AUD
$162 USD
View
Final sale: no returns
A
Retailer 3
-
$243 AUD
$171 USD
View
A
Retailer 4
-
$258 AUD
$181 USD
View
A
Retailer 5
-
$261 AUD
$183 USD
View
A
Retailer 6
-
$349 AUD
$245 USD
View
A
Retailer 7
-
$443 AUD
£245 GBP
View
A
Retailer 8
-
$468 AUD
ZAR 5,308 ZAR
View
A
Retailer 9
-
$475 AUD
$334 USD
View
B+
Retailer 10
-
$502 AUD
€336 EUR
View
B+
Retailer 11
-
$641 AUD
View
B+
Retailer 12
-
$659 AUD
View
B+
Retailer 13
-
$685 AUD
$481 USD
View
B+
Retailer 14
-
$710 AUD
SGD 674 SGD
View
B+
Retailer 15
-
$820 AUD
$576 USD
View
B+
Retailer 16
-
$827 AUD
$581 USD
View
B
Retailer 17
-
$878 AUD
$617 USD
View
B+
Retailer 18
-
$902 AUD
$634 USD
View
Most Expensive
B
MOH London
LG790630389 · Oct 29
$1,210 AUD
£669 GBP
View
18 more retailers have this diamond
Prices start from $206 AUDSave up to $1,003 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 Radiant
$206 AUD