Radiant|Lab Grown|IGI

10.40ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG588335662

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

Certificate IGI LG588335662

Diamond specifications and retailer prices

From €1,343 EUR
$1,500 USD
As of November 2, 2026
Save €994 EUR (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €6,387 EUR at Adiamor · As of October 31, 2026
View at Adiamor

About this 10.4ct lab-grown radiant diamond

This 10.4ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG588335662 or 588335662. Listed at 9 retailers as of October 31, 2026, with a 74% 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

10.40
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588335662
Dimensions15.53 × 10.69 × 7.24 mm
L/W Ratio1.45
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
15.53 mm10.69 mm10.40 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588335662
Side View
Table 65.0%Crown 42.4°Girdle: MediumPavilion 35.6°Culet: NoneDepth 67.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: €6,387 EUR|Low: €1,186 EUR|High: €6,543 EUR|Avg: €2,922 EUR
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4€1,343 EUR
Retailer 8€1,360 EUR
Retailer 2€1,720 EUR
Retailer 6€1,744 EUR
Retailer 7€1,885 EUR
Retailer 3€1,953 EUR
Retailer 5€2,337 EUR
Retailer 9€6,355 EUR
Adiamor€6,387 EUR

37 data points across 9 retailers

9 retailers€1,343 EUR to €2,337 EUR

A
Cheapest Retailer
-
€1,343 EUR
$1,500 USD
Retailer 2
-
€1,360 EUR
$1,519 USD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
€1,720 EUR
£1,513 GBP
View
B+
Retailer 4
-
€1,744 EUR
$1,948 USD
View
B+
Retailer 5
-
€1,885 EUR
$2,106 USD
View
B+
Retailer 6
-
€1,953 EUR
View
B+
Retailer 7
-
€2,337 EUR
$2,611 USD
View
Retailer 8
-
€6,355 EUR
$7,100 USD
View
Price under review
Most Expensive
Adiamor
D-82061280 · Oct 31
€6,387 EUR
$7,136 USD
View
Price under review
8 more retailers have this diamond
Prices start from €1,343 EURSave up to €994 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
10.40ct Radiant
€1,343 EUR