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Radiant|Lab Grown|IGI

1.54ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG488131855

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

Certificate IGI LG488131855

Diamond specifications and retailer prices

From €877 EUR
$980 USD
As of October 31, 2026
Save €3,503 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,380 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG488131855 or 488131855. Listed at 10 retailers as of October 29, 2026, with prices from €877 to €4,380, a €3,503 spread on the same certified stone. MOH London lists it at €4,380. 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

1.54
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488131855
Dimensions7.84 × 5.74 × 3.88 mm
L/W Ratio1.37
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.84 mm5.74 mm1.54 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488131855
Side View
Table 65.5%Crown 44.5°Girdle: MediumPavilion 31.3°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
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 31
Current: €4,380 EUR|Low: €877 EUR|High: €4,415 EUR|Avg: €2,183 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2€877 EUR
Retailer 3€1,315 EUR
Retailer 4€1,525 EUR
Retailer 6€1,678 EUR
Retailer 9€1,734 EUR
Retailer 8€2,070 EUR
Retailer 5€2,404 EUR
Retailer 7€2,769 EUR
MOH London€4,380 EUR

13 data points across 9 retailers

10 retailers€877 EUR to €4,380 EUR

A
Cheapest Retailer
-
€877 EUR
$980 USD
B+
Retailer 2
-
€1,315 EUR
$1,469 USD
View
B+
Retailer 3
-
€1,430 EUR
$1,598 USD
View
Retailer 4
-
€1,525 EUR
$1,704 USD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
€1,525 EUR
$1,704 USD
View
B+
Retailer 6
-
€1,678 EUR
$1,875 USD
View
B
Retailer 7
-
€2,404 EUR
$2,686 USD
View
B
Retailer 8
-
€2,769 EUR
$3,093 USD
View
B
Retailer 9
-
€2,859 EUR
$3,194 USD
View
Most Expensive
B
MOH London
LG488131855 · Oct 29
€4,380 EUR
£3,853 GBP
View
9 more retailers have this diamond
Prices start from €877 EURSave up to €3,503 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
1.54ct Radiant
€877 EUR