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Radiant|Lab Grown|IGI

0.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG810611404

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

Certificate IGI LG810611404

Diamond specifications and retailer prices

From $259 NZD
As of November 4, 2026
Save $1,486 NZD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,745 NZD at Michael Trio · As of November 4, 2026
View at Michael Trio

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 LG810611404 or 810611404. Listed at 18 retailers as of November 4, 2026, with prices from $259 to $1,745, a $1,486 spread on the same certified stone. Michael Trio lists it at $1,745. 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 angle40.6°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810611404
Dimensions6.26 × 3.89 × 2.50 mm
L/W Ratio1.61
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.26 mm3.89 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810611404
Side View
Table 65.0%Crown 40.6°Girdle: MediumPavilion 32.3°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 4
Current: $1,745 NZD|Low: $259 NZD|High: $1,771 NZD|Avg: $741 NZD|-1.5%
Michael Trio
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
November 4, 2026
Retailer 2$259 NZD
Retailer 17$287 NZD
Retailer 14$300 NZD
Retailer 16$321 NZD
Retailer 9$328 NZD
Retailer 12$435 NZD
Retailer 6$548 NZD
Retailer 13$548 NZD
Retailer 4$585 NZD
Retailer 8$603 NZD
Retailer 3$821 NZD
Retailer 7$853 NZD
Retailer 10$887 NZD
Retailer 11$1,031 NZD
Retailer 15$1,089 NZD
Retailer 18$1,128 NZD
Retailer 5$1,506 NZD
Michael Trio$1,745 NZD

21 data points across 18 retailers

18 retailers$259 NZD to $1,745 NZD

A+
Cheapest Retailer
-
$259 NZD
A
Retailer 2
-
$287 NZD
View
Final sale: no returns
A
Retailer 3
-
$300 NZD
View
A
Retailer 4
-
$321 NZD
View
Retailer 5
-
$328 NZD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$435 NZD
View
A
Retailer 7
-
$548 NZD
View
A
Retailer 8
-
$548 NZD
View
A
Retailer 9
-
$585 NZD
View
A
Retailer 10
-
$603 NZD
View
B+
Retailer 11
-
$821 NZD
View
B+
Retailer 12
-
$853 NZD
View
Retailer 13
-
$887 NZD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$1,031 NZD
View
B
Retailer 15
-
$1,089 NZD
View
B+
Retailer 16
-
$1,128 NZD
View
B
Retailer 17
-
$1,506 NZD
View
Most Expensive
B
Michael Trio
1233249693 · Nov 4
$1,745 NZD
SGD 1,329 SGD
View
17 more retailers have this diamond
Prices start from $259 NZDSave up to $1,486 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
$259 NZD