Radiant|Lab Grown|IGI

0.51ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG782612205

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

Certificate IGI LG782612205

Diamond specifications and retailer prices

From $148 USD
As of October 30, 2026
Save $721 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $869 USD at MOH London · As of October 26, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG782612205 or 782612205. Listed at 18 retailers as of October 26, 2026, with prices from $148 to $869, a $721 spread on the same certified stone. MOH London lists it at $869. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782612205
Dimensions5.55 × 3.90 × 2.67 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
5.55 mm3.90 mm0.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782612205
Side View
Table 68.0%Crown 43.3°Girdle: Slightly ThickPavilion 35.5°Culet: NoneDepth 68.5%

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: Oct 30
Current: $869 USD|Low: $148 USD|High: $906 USD|Avg: $413 USD|-4.1%
MOH London
Retailer 2
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 18
October 30, 2026
Retailer 2$148 USD
Retailer 15$165 USD
Retailer 6$174 USD
Retailer 14$184 USD
Retailer 4$186 USD
Retailer 17$250 USD
Retailer 11$318 USD
Retailer 18$334 USD
Retailer 5$341 USD
Retailer 8$357 USD
Retailer 7$484 USD
Retailer 3$508 USD
Retailer 10$580 USD
Retailer 12$587 USD
Retailer 16$591 USD
Retailer 9$630 USD
Retailer 13$646 USD
MOH London$869 USD

20 data points across 18 retailers

18 retailers$148 USD to $869 USD

A+
Cheapest Retailer
-
$148 USD
A
Retailer 2
-
$165 USD
View
Final sale: no returns
A
Retailer 3
-
$174 USD
View
A
Retailer 4
-
$184 USD
View
A
Retailer 5
-
$186 USD
View
A
Retailer 6
-
$250 USD
View
A
Retailer 7
-
$318 USD
£250 GBP
View
A
Retailer 8
-
$334 USD
ZAR 5,391 ZAR
View
A
Retailer 9
-
$341 USD
View
Retailer 10
-
$357 USD
€340 EUR
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$484 USD
View
B+
Retailer 12
-
$508 USD
SGD 687 SGD
View
B
Retailer 13
-
$580 USD
View
B+
Retailer 14
-
$587 USD
View
B+
Retailer 15
-
$591 USD
View
B
Retailer 16
-
$630 USD
View
B+
Retailer 17
-
$646 USD
View
Most Expensive
B
MOH London
LG782612205 · Oct 26
$869 USD
£684 GBP
View
17 more retailers have this diamond
Prices start from $148 USDSave up to $721 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
$148 USD