Radiant|Lab Grown|IGI

0.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG815646211

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

Certificate IGI LG815646211

Diamond specifications and retailer prices

From $144 USD
As of November 4, 2026
Save $697 USD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $841 USD 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 LG815646211 or 815646211. Listed at 20 retailers as of November 2, 2026, with prices from $144 to $841, a $697 spread on the same certified stone. MOH London lists it at $841. 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 angle38.4°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815646211
Dimensions5.69 × 4.02 × 2.53 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.69 mm4.02 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815646211
Side View
Table 65.0%Crown 38.4°Girdle: MED-STKPavilion 33.4°Culet: NoneDepth 62.9%

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: $841 USD|Low: $144 USD|High: $872 USD|Avg: $411 USD|-3.6%
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 2$144 USD
Retailer 13$162 USD
Retailer 16$167 USD
Retailer 19$179 USD
Retailer 11$183 USD
Retailer 14$242 USD
Retailer 15$305 USD
Retailer 7$326 USD
Retailer 9$339 USD
Retailer 5$341 USD
Retailer 6$458 USD
Retailer 10$479 USD
Retailer 4$494 USD
Retailer 8$520 USD
Retailer 17$568 USD
Retailer 12$575 USD
Retailer 18$608 USD
Retailer 3$630 USD
MOH London$841 USD

19 data points across 19 retailers

20 retailers$144 USD to $841 USD

A+
Cheapest Retailer
-
$144 USD
A
Retailer 2
-
$162 USD
View
Final sale: no returns
A
Retailer 3
-
$167 USD
View
A
Retailer 4
-
$179 USD
View
Retailer 5
-
$183 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$242 USD
View
A
Retailer 7
-
$305 USD
View
A
Retailer 8
-
$326 USD
View
A
Retailer 9
-
$339 USD
View
B+
Retailer 10
-
$341 USD
View
B+
Retailer 11
-
$458 USD
View
B+
Retailer 12
-
$479 USD
View
B+
Retailer 13
-
$494 USD
View
Retailer 14
-
$514 USD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$520 USD
View
B+
Retailer 16
-
$568 USD
View
B+
Retailer 17
-
$575 USD
View
B
Retailer 18
-
$608 USD
View
B+
Retailer 19
-
$630 USD
View
Most Expensive
B
MOH London
LG815646211 · Nov 2
$841 USD
£662 GBP
View
19 more retailers have this diamond
Prices start from $144 USDSave up to $697 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
$144 USD