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Radiant|Lab Grown|IGI

1.51ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG833665579

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

Certificate IGI LG833665579

Diamond specifications and retailer prices

From €196 EUR
As of November 5, 2026
Save €734 EUR (79%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €930 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG833665579 or 833665579. Listed at 9 retailers as of November 1, 2026, with prices from €196 to €930, a €734 spread on the same certified stone. MOH London lists it at €930. 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833665579
Dimensions8.20 × 5.51 × 3.74 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm5.51 mm1.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833665579
Side View
Table 63.0%Crown 43.3°Girdle: Slightly ThickPavilion 34.5°Culet: NoneDepth 67.9%

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: Nov 5
Current: €930 EUR|Low: €178 EUR|High: €992 EUR|Avg: €458 EUR|+3.2%
MOH London
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
November 6, 2026
Retailer 4€178 EUR
Retailer 6€188 EUR
Retailer 5€191 EUR
Retailer 3€196 EUR
Retailer 2€253 EUR
Retailer 9€331 EUR
Retailer 14€336 EUR
Retailer 10€352 EUR
Retailer 8€399 EUR
Retailer 7€492 EUR
Retailer 12€591 EUR
Retailer 15€619 EUR
Retailer 11€693 EUR
Retailer 16€788 EUR
MOH London€930 EUR
Retailer 13€992 EUR

18 data points across 16 retailers

9 retailers€196 EUR to €930 EUR

Retailer 1
-
€188 EUR
Price last confirmed 39 days ago
A
Retailer 2
-
€196 EUR
View
Final sale: no returns
A
Retailer 3
-
€253 EUR
View
A
Retailer 4
-
€331 EUR
View
B+
Retailer 5
-
€352 EUR
View
Retailer 6
-
€619 EUR
View
Price last confirmed 38 days ago
B+
Retailer 7
-
€693 EUR
View
Retailer 8
-
€788 EUR
View
Price last confirmed 38 days ago
Most Expensive
B
MOH London
LG833665579 · Nov 1
€930 EUR
£818 GBP
View
8 more retailers have this diamond
Prices start from €196 EURSave up to €734 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
1.51ct Radiant
€196 EUR