Radiant|Lab Grown|IGI

0.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG764610801

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

Certificate IGI LG764610801

Diamond specifications and retailer prices

From $175 USD
As of November 2, 2026
Save $1,205 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,380 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 LG764610801 or 764610801. Listed at 21 retailers as of November 2, 2026, with prices from $175 to $1,380, a $1,205 spread on the same certified stone. MOH London lists it at $1,380. 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 angle43.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764610801
Dimensions3.91 × 3.91 × 2.65 mm
L/W Ratio1.00
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
3.91 mm3.91 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764610801
Side View
Table 65.0%Crown 43.4°Girdle: MediumPavilion 34.6°Culet: NoneDepth 67.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $1,380 USD|Low: $148 USD|High: $1,397 USD|Avg: $458 USD
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
November 4, 2026
Retailer 7$165 USD
Retailer 8$175 USD
Retailer 15$232 USD
Retailer 2$276 USD
Retailer 11$296 USD
Retailer 10$300 USD
Retailer 3$323 USD
Retailer 13$336 USD
Retailer 9$421 USD
Retailer 4$467 USD
Retailer 14$520 USD
Retailer 12$562 USD
Retailer 5$587 USD
Retailer 6$981 USD
MOH London$1,380 USD

41 data points across 15 retailers

21 retailers$175 USD to $1,380 USD

Retailer 1
-
$133 USD
Price last confirmed 24 days ago
Retailer 2
-
$155 USD
View
Price last confirmed 39 days ago
Retailer 3
-
$163 USD
View
Price last confirmed 40 days ago
Retailer 4
-
$165 USD
View
Price last confirmed 23 days ago
Retailer 5
-
$165 USD
View
Price last confirmed 25 days ago
A
Retailer 6
-
$175 USD
View
Final sale: no returns
A
Retailer 7
-
$232 USD
View
Retailer 8
-
$273 USD
View
Price last confirmed 23 days ago
A
Retailer 9
-
$276 USD
View
A
Retailer 10
-
$296 USD
View
A
Retailer 11
-
$300 USD
View
A
Retailer 12
-
$323 USD
View
B+
Retailer 13
-
$336 USD
View
B+
Retailer 14
-
$421 USD
View
B+
Retailer 15
-
$467 USD
View
B+
Retailer 16
-
$520 USD
View
Retailer 17
-
$532 USD
View
Price last confirmed 25 days ago
B
Retailer 18
-
$562 USD
View
B
Retailer 19
-
$587 USD
View
B
Retailer 20
-
$981 USD
View
Most Expensive
B
MOH London
LG764610801 · Nov 2
$1,380 USD
£1,087 GBP
View
20 more retailers have this diamond
Prices start from $175 USDSave up to $1,205 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
$175 USD