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 $146 USD
As of November 4, 2026
Save $837 USD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $983 USD 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 $146 to $983, a $837 spread on the same certified stone. Michael Trio lists it at $983. 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
Color
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

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A+
Exceptional
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: $983 USD|Low: $146 USD|High: $998 USD|Avg: $418 USD|-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$146 USD
Retailer 17$162 USD
Retailer 14$169 USD
Retailer 16$181 USD
Retailer 9$185 USD
Retailer 12$245 USD
Retailer 6$309 USD
Retailer 13$309 USD
Retailer 4$330 USD
Retailer 8$340 USD
Retailer 3$463 USD
Retailer 7$481 USD
Retailer 10$500 USD
Retailer 11$581 USD
Retailer 15$614 USD
Retailer 18$636 USD
Retailer 5$849 USD
Michael Trio$983 USD

21 data points across 18 retailers

18 retailers$146 USD to $983 USD

A+
Cheapest Retailer
-
$146 USD
A
Retailer 2
-
$162 USD
View
Final sale: no returns
A
Retailer 3
-
$169 USD
View
A
Retailer 4
-
$181 USD
View
Retailer 5
-
$185 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$245 USD
View
A
Retailer 7
-
$309 USD
View
A
Retailer 8
-
$309 USD
View
A
Retailer 9
-
$330 USD
View
A
Retailer 10
-
$340 USD
View
B+
Retailer 11
-
$463 USD
View
B+
Retailer 12
-
$481 USD
View
Retailer 13
-
$500 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$581 USD
View
B
Retailer 15
-
$614 USD
View
B+
Retailer 16
-
$636 USD
View
B
Retailer 17
-
$849 USD
View
Most Expensive
B
Michael Trio
1233249693 · Nov 4
$983 USD
SGD 1,329 SGD
View
17 more retailers have this diamond
Prices start from $146 USDSave up to $837 USD

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
$146 USD