Radiant|Lab Grown|IGI

2.50ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG517202190

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

Certificate IGI LG517202190

Diamond specifications and retailer prices

From €1,736 EUR
$1,940 USD
As of October 31, 2026
Save €7,168 EUR (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €10,873 EUR at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 2.5ct lab-grown radiant diamond

This 2.5ct lab-grown radiant sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG517202190 or 517202190. Listed at 14 retailers as of October 31, 2026, with a 413% 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

2.50
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517202190
Dimensions8.89 × 6.62 × 4.69 mm
L/W Ratio1.34
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
8.89 mm6.62 mm2.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517202190
Side View
Table 64.0%Crown 41°Girdle: MED-STKPavilion 32.1°Culet: NoneDepth 70.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €8,904 EUR|Low: €1,736 EUR|High: €10,873 EUR|Avg: €5,763 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Reve Diamonds
November 1, 2026
Retailer 5€1,736 EUR
Retailer 4€3,584 EUR
Retailer 8€4,013 EUR
Retailer 6€4,157 EUR
Retailer 2€5,413 EUR
Retailer 3€5,513 EUR
Retailer 7€6,438 EUR
Retailer 1€8,904 EUR
Reve Diamonds€10,873 EUR

43 data points across 9 retailers

14 retailers€1,736 EUR to €8,904 EUR

B+
Cheapest Retailer
-
€1,736 EUR
$1,940 USD
B
Retailer 2
-
€3,584 EUR
$4,004 USD
View
B
Retailer 3
-
€3,756 EUR
$4,196 USD
View
B
Retailer 4
-
€3,779 EUR
$4,222 USD
View
B
Retailer 5
-
€4,013 EUR
$4,483 USD
View
Final sale: no returns
B
Retailer 6
-
€4,157 EUR
$4,644 USD
View
Retailer 7
-
€4,157 EUR
$4,644 USD
View
Price last confirmed 19 days ago
B
Retailer 8
-
€4,207 EUR
$4,700 USD
View
B
Retailer 9
-
€5,194 EUR
$5,803 USD
View
B
Retailer 10
-
€5,413 EUR
£4,762 GBP
View
B
Retailer 11
-
€5,513 EUR
$6,159 USD
View
B
Retailer 12
-
€6,438 EUR
$7,193 USD
View
B
Retailer 13
-
€8,904 EUR
£7,833 GBP
View
Most Expensive
Reve Diamonds
BBCD2517D · Nov 1
€10,873 EUR
$12,148 USD
View
Price under review
13 more retailers have this diamond
Prices start from €1,736 EURSave up to €7,168 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+
2.50ct Radiant
€1,736 EUR