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Radiant|Lab Grown|IGI

1.54ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG551273804

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

Certificate IGI LG551273804

Diamond specifications and retailer prices

From €967 EUR
As of November 6, 2026
Save €401 EUR (29%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,368 EUR at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG551273804 or 551273804. Listed at 2 retailers as of November 5, 2026, with prices from €967 to €1,368, a €401 spread on the same certified stone. Diamond Quarter lists it at €1,368. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551273804
Dimensions8.26 × 5.65 × 3.85 mm
L/W Ratio1.46
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
8.26 mm5.65 mm1.54 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551273804
Side View
Table 65.0%Crown 42.7°Girdle: MediumPavilion 35°Culet: NoneDepth 68.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: €309 EUR|Low: €298 EUR|High: €1,451 EUR|Avg: €707 EUR|-20.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
April 26, 2026
Retailer 6€298 EUR
Retailer 1€309 EUR
Retailer 3€446 EUR
Retailer 8€554 EUR
Retailer 2€558 EUR
Retailer 9€587 EUR
Retailer 5€628 EUR
Retailer 7€967 EUR
Retailer 4€1,254 EUR

53 data points across 9 retailers

2 retailers€967 EUR to €1,368 EUR

B
Cheapest Retailer
-
€967 EUR
Most Expensive
B
Diamond Quarter
1.54SI1FLG044709N · Nov 5
€1,368 EUR
£1,203 GBP
View
1 more retailer has this diamond
Prices start from €967 EURSave up to €401 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.

B
1.54ct Radiant
€967 EUR