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Radiant|Lab Grown|IGI

0.51ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG843636772

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

Certificate IGI LG843636772

Diamond specifications and retailer prices

From €81 EUR
$90 USD
As of October 30, 2026
Save €650 EUR (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €731 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 LG843636772 or 843636772. Listed at 14 retailers as of October 30, 2026, with prices from €81 to €731, a €650 spread on the same certified stone. MOH London lists it at €731. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843636772
Dimensions5.60 × 3.98 × 2.70 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.60 mm3.98 mm0.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843636772
Side View
Table 64.0%Crown 34.7°Girdle: Slightly ThickPavilion 39.9°Culet: NoneDepth 67.8%

Caratlytics Score

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A
Excellent
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: €731 EUR|Low: €81 EUR|High: €757 EUR|Avg: €261 EUR|-3.5%
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
November 1, 2026
Retailer 12€81 EUR
Retailer 13€90 EUR
Retailer 9€93 EUR
Retailer 6€106 EUR
Retailer 3€136 EUR
Retailer 2€184 EUR
Retailer 8€188 EUR
Retailer 4€242 EUR
Retailer 5€286 EUR
Retailer 7€320 EUR
Retailer 10€356 EUR
Retailer 11€375 EUR
MOH London€731 EUR

8 data points across 13 retailers

14 retailers€81 EUR to €731 EUR

A
Cheapest Retailer
-
€81 EUR
$90 USD
A
Retailer 2
-
€90 EUR
$101 USD
View
Final sale: no returns
A
Retailer 3
-
€93 EUR
$104 USD
View
A
Retailer 4
-
€106 EUR
$118 USD
View
B+
Retailer 5
-
€136 EUR
$152 USD
View
A
Retailer 6
-
€184 EUR
£162 GBP
View
A
Retailer 7
-
€188 EUR
View
A
Retailer 8
-
€242 EUR
£213 GBP
View
B+
Retailer 9
-
€286 EUR
SGD 432 SGD
View
B+
Retailer 10
-
€286 EUR
$320 USD
View
B+
Retailer 11
-
€320 EUR
$357 USD
View
B+
Retailer 12
-
€356 EUR
$398 USD
View
B+
Retailer 13
-
€375 EUR
$419 USD
View
Most Expensive
B
MOH London
LG843636772 · Nov 1
€731 EUR
£643 GBP
View
13 more retailers have this diamond
Prices start from €81 EURSave up to €650 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
€81 EUR