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Radiant|Lab Grown|IGI

0.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG743509083

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

Certificate IGI LG743509083

Diamond specifications and retailer prices

From $234 NZD
As of November 4, 2026
Save $2,190 NZD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,424 NZD at MOH London · As of November 2, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743509083 or 743509083. Listed at 19 retailers as of November 2, 2026, with prices from $234 to $2,424, a $2,190 spread on the same certified stone. MOH London lists it at $2,424. 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
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743509083
Dimensions3.95 × 5.71 × 2.65 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
3.95 mm5.71 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743509083
Side View
Table 66.0%Crown 42.8°Girdle: Slightly ThickPavilion 34°Culet: NoneDepth 67.1%

Caratlytics Score

How it works →
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 4
Current: $2,424 NZD|Low: $224 NZD|High: $2,453 NZD|Avg: $739 NZD|+0.7%
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
November 4, 2026
Retailer 16$234 NZD
Retailer 3$271 NZD
Retailer 17$291 NZD
Retailer 19$291 NZD
Retailer 12$303 NZD
Retailer 7$408 NZD
Retailer 2$484 NZD
Retailer 15$522 NZD
Retailer 14$527 NZD
Retailer 8$564 NZD
Retailer 5$596 NZD
Retailer 13$738 NZD
Retailer 9$825 NZD
Retailer 6$922 NZD
Retailer 18$933 NZD
Retailer 4$986 NZD
Retailer 10$1,032 NZD
Retailer 11$1,731 NZD
MOH London$2,424 NZD

35 data points across 19 retailers

19 retailers$234 NZD to $2,424 NZD

A
Cheapest Retailer
-
$234 NZD
A
Retailer 2
-
$271 NZD
View
A
Retailer 3
-
$291 NZD
View
Retailer 4
-
$291 NZD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$303 NZD
View
Final sale: no returns
A
Retailer 6
-
$408 NZD
View
A
Retailer 7
-
$484 NZD
View
A
Retailer 8
-
$522 NZD
View
A
Retailer 9
-
$527 NZD
View
A
Retailer 10
-
$564 NZD
View
B+
Retailer 11
-
$596 NZD
View
B+
Retailer 12
-
$738 NZD
View
B+
Retailer 13
-
$825 NZD
View
B+
Retailer 14
-
$922 NZD
View
B+
Retailer 15
-
$933 NZD
View
B
Retailer 16
-
$986 NZD
View
B
Retailer 17
-
$1,032 NZD
View
B
Retailer 18
-
$1,731 NZD
View
Most Expensive
B
MOH London
LG743509083 · Nov 2
$2,424 NZD
£1,076 GBP
View
18 more retailers have this diamond
Prices start from $234 NZDSave up to $2,190 NZD

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
$234 NZD