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Round|Lab Grown|IGI

2.50ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG700502179

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700502179

Diamond specifications and retailer prices

From €311 EUR
$349 USD
As of November 1, 2026
Save €2,872 EUR (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €3,183 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700502179 or 700502179. Listed at 19 retailers as of October 31, 2026, with prices from €311 to €3,183, a €2,872 spread on the same certified stone. Brilliant Earth lists it at €3,183. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700502179
Dimensions8.66 × 8.60 × 5.39 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.66 mm8.60 mm2.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700502179
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

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: €3,183 EUR|Low: €299 EUR|High: €3,183 EUR|Avg: €871 EUR
Brilliant Earth
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
Retailer 15
November 2, 2026
Retailer 13€311 EUR
Retailer 3€349 EUR
Retailer 7€365 EUR
Retailer 4€386 EUR
Retailer 6€386 EUR
Retailer 9€522 EUR
Retailer 11€620 EUR
Retailer 15€681 EUR
Retailer 14€716 EUR
Retailer 2€770 EUR
Retailer 10€1,132 EUR
Retailer 5€1,370 EUR
Retailer 12€1,483 EUR
Retailer 8€1,666 EUR
Brilliant Earth€3,183 EUR

41 data points across 15 retailers

19 retailers€311 EUR to €3,183 EUR

Retailer 1
-
€311 EUR
$349 USD
Price last confirmed 41 days ago
A
Retailer 2
-
€311 EUR
$349 USD
View
A
Retailer 3
-
€349 EUR
$391 USD
View
Final sale: no returns
Retailer 4
-
€381 EUR
$427 USD
View
Price last confirmed 41 days ago
Retailer 5
-
€386 EUR
$433 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
€386 EUR
$433 USD
View
A
Retailer 7
-
€522 EUR
$585 USD
View
B+
Retailer 8
-
€620 EUR
$695 USD
View
A
Retailer 9
-
€681 EUR
$764 USD
View
A
Retailer 10
-
€716 EUR
$803 USD
View
B+
Retailer 11
-
€770 EUR
£680 GBP
View
B+
Retailer 12
-
€1,132 EUR
$1,270 USD
View
Retailer 13
-
€1,370 EUR
$1,537 USD
View
Price last confirmed 42 days ago
B
Retailer 14
-
€1,370 EUR
$1,537 USD
View
B
Retailer 15
-
€1,483 EUR
$1,663 USD
View
B
Retailer 16
-
€1,508 EUR
$1,691 USD
View
B
Retailer 17
-
€1,666 EUR
£1,471 GBP
View
B
Retailer 18
-
€2,764 EUR
$3,100 USD
View
Most Expensive
B
Brilliant Earth
20952606Y · Oct 31
€3,183 EUR
$3,570 USD
View
18 more retailers have this diamond
Prices start from €311 EURSave up to €2,872 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
2.50ct Round
€311 EUR