Radiant|Lab Grown|IGI

1.04ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG797631781

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

Certificate IGI LG797631781

Diamond specifications and retailer prices

From €259 EUR
£228 GBP
As of November 1, 2026
Save €283 EUR (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €720 EUR at MOH London · As of October 19, 2026
View at MOH London

About this 1.04ct lab-grown radiant diamond

This 1.04ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG797631781 or 797631781. Listed at 8 retailers as of October 31, 2026, with a 110% 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

1.04
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle29.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797631781
Dimensions6.99 × 4.54 × 3.44 mm
L/W Ratio1.54
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.99 mm4.54 mm1.04 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG797631781
Side View
Table 65.0%Crown 38°Girdle: Slightly ThickPavilion 29.8°Culet: NoneDepth 75.8%

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: Nov 1
Current: €720 EUR|Low: €249 EUR|High: €724 EUR|Avg: €363 EUR|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2€259 EUR
Retailer 3€273 EUR
Retailer 4€278 EUR
Retailer 6€286 EUR
Retailer 5€291 EUR
Retailer 7€441 EUR
MOH London€720 EUR

38 data points across 7 retailers

8 retailers€259 EUR to €542 EUR

A
Cheapest Retailer
-
€259 EUR
£228 GBP
A
Retailer 2
-
€273 EUR
View
A
Retailer 3
-
€278 EUR
$311 USD
View
A
Retailer 4
-
€286 EUR
$319 USD
View
A
Retailer 5
-
€291 EUR
£256 GBP
View
B+
Retailer 6
-
€441 EUR
$493 USD
View
B
Retailer 7
-
€542 EUR
$606 USD
View
Most Expensive
MOH London
LG797631781 · Oct 19
€720 EUR
£633 GBP
View
Price last confirmed 14 days ago
7 more retailers have this diamond
Prices start from €259 EURSave up to €283 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
1.04ct Radiant
€259 EUR