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Radiant|Lab Grown|IGI

0.51ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG762555331

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

Certificate IGI LG762555331

Diamond specifications and retailer prices

From €240 EUR
$268 USD
As of November 1, 2026
Save €770 EUR (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,009 EUR at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG762555331 or 762555331. Listed at 8 retailers as of November 1, 2026, with prices from €240 to €1,009, a €770 spread on the same certified stone. MOH London lists it at €1,009. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762555331
Dimensions5.71 × 4.02 × 2.59 mm
L/W Ratio1.42
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
5.71 mm4.02 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762555331
Side View
Table 68.0%Crown 40.3°Girdle: ThickPavilion 34.8°Culet: NoneDepth 64.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €1,009 EUR|Low: €216 EUR|High: €1,021 EUR|Avg: €361 EUR|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6€224 EUR
Retailer 7€240 EUR
Retailer 5€241 EUR
Retailer 2€241 EUR
Retailer 3€286 EUR
Retailer 4€292 EUR
Retailer 8€327 EUR
MOH London€1,009 EUR

43 data points across 8 retailers

8 retailers€240 EUR to €1,009 EUR

Retailer 1
-
€224 EUR
$250 USD
Price last confirmed 13 days ago
A
Retailer 2
-
€240 EUR
$268 USD
View
A
Retailer 3
-
€241 EUR
View
A
Retailer 4
-
€241 EUR
£212 GBP
View
B+
Retailer 5
-
€286 EUR
$320 USD
View
B+
Retailer 6
-
€292 EUR
£257 GBP
View
B+
Retailer 7
-
€327 EUR
$365 USD
View
Most Expensive
B
MOH London
LG762555331 · Nov 1
€1,009 EUR
£888 GBP
View
7 more retailers have this diamond
Prices start from €240 EURSave up to €770 EUR

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
€240 EUR