Radiant|Lab Grown|IGI

4.78ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG651444032

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

Certificate IGI LG651444032

Diamond specifications and retailer prices

From €871 EUR
$973 USD
As of October 30, 2026
Save €2,917 EUR (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €7,734 EUR at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.78ct lab-grown radiant diamond

This 4.78ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG651444032 or 651444032. Listed at 15 retailers as of October 25, 2026, with a 335% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.78
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651444032
Dimensions11.92 × 8.39 × 5.60 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.92 mm8.39 mm4.78 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651444032
Side View
Table 62.0%Crown 41.8°Girdle: MED-STKPavilion 33.6°Culet: NoneDepth 66.7%

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: €7,734 EUR|Low: €836 EUR|High: €7,734 EUR|Avg: €2,047 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 11€871 EUR
Retailer 3€948 EUR
Retailer 4€1,011 EUR
Retailer 12€1,011 EUR
Retailer 2€1,032 EUR
Retailer 5€1,113 EUR
Retailer 8€1,168 EUR
Retailer 14€1,376 EUR
Retailer 7€1,615 EUR
Retailer 13€2,090 EUR
Retailer 10€2,178 EUR
Retailer 6€2,636 EUR
Retailer 9€3,788 EUR
Do Amore Diamonds€7,734 EUR

41 data points across 14 retailers

15 retailers€871 EUR to €3,788 EUR

A
Cheapest Retailer
-
€871 EUR
$973 USD
A
Retailer 2
-
€948 EUR
$1,059 USD
View
A
Retailer 3
-
€1,011 EUR
$1,129 USD
View
Retailer 4
-
€1,011 EUR
$1,129 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
€1,032 EUR
£907 GBP
View
A
Retailer 6
-
€1,113 EUR
$1,243 USD
View
A
Retailer 7
-
€1,113 EUR
$1,243 USD
View
A
Retailer 8
-
€1,168 EUR
$1,305 USD
View
B+
Retailer 9
-
€1,376 EUR
$1,537 USD
View
B+
Retailer 10
-
€1,615 EUR
£1,421 GBP
View
B
Retailer 11
-
€2,090 EUR
$2,335 USD
View
B
Retailer 12
-
€2,178 EUR
$2,433 USD
View
B
Retailer 13
-
€2,636 EUR
$2,944 USD
View
B
Retailer 14
-
€3,788 EUR
£3,332 GBP
View
Most Expensive
Do Amore Diamonds
27-C44F23C4C · Oct 29
€7,734 EUR
$8,640 USD
View
Price under review
14 more retailers have this diamond
Prices start from €871 EURSave up to €2,917 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
4.78ct Radiant
€871 EUR