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Round|Lab Grown|IGI

2.57ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG792663630

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792663630

Diamond specifications and retailer prices

From €258 EUR
$288 USD
As of October 26, 2026
Save €1,711 EUR (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,969 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.57ct lab-grown round diamond

This 2.57ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG792663630 or 792663630. Listed at 18 retailers as of October 26, 2026, with prices from €258 to €1,969, a €1,711 spread on the same certified stone. Brilliant Earth lists it at €1,969. 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

2.57
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792663630
Dimensions8.87 × 8.83 × 5.38 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.87 mm8.83 mm2.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792663630
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.8%

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: Oct 26
Current: €1,969 EUR|Low: €247 EUR|High: €1,969 EUR|Avg: €718 EUR|+2.8%
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
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 4€258 EUR
Retailer 5€288 EUR
Retailer 9€299 EUR
Retailer 10€320 EUR
Retailer 14€461 EUR
Retailer 18€483 EUR
Retailer 2€505 EUR
Retailer 3€525 EUR
Retailer 15€560 EUR
Retailer 8€591 EUR
Retailer 12€598 EUR
Retailer 6€706 EUR
Retailer 11€806 EUR
Retailer 13€1,015 EUR
Retailer 7€1,028 EUR
Retailer 16€1,282 EUR
Retailer 17€1,383 EUR
Brilliant Earth€1,969 EUR

41 data points across 18 retailers

18 retailers€258 EUR to €1,969 EUR

A
Cheapest Retailer
-
€258 EUR
$288 USD
Retailer 2
-
€299 EUR
$334 USD
View
Price last confirmed 9 days ago
Retailer 3
-
€320 EUR
$357 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
€355 EUR
HK$3,100 HKD
View
Retailer 5
-
€461 EUR
$515 USD
View
Price last confirmed 5 days ago
Retailer 6
-
€483 EUR
£425 GBP
View
Price last confirmed 16 days ago
A
Retailer 7
-
€505 EUR
View
Retailer 8
-
€525 EUR
$586 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
€560 EUR
£493 GBP
View
A
Retailer 10
-
€591 EUR
$660 USD
View
A
Retailer 11
-
€598 EUR
A$1,028 AUD
View
A
Retailer 12
-
€706 EUR
$789 USD
View
B+
Retailer 13
-
€806 EUR
$900 USD
View
B+
Retailer 14
-
€1,015 EUR
SGD 1,532 SGD
View
Retailer 15
-
€1,028 EUR
$1,148 USD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
€1,282 EUR
£1,128 GBP
View
Retailer 17
-
€1,383 EUR
$1,545 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
20042499A · Oct 31
€1,969 EUR
$2,200 USD
View
17 more retailers have this diamond
Prices start from €258 EURSave up to €1,711 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
2.57ct Round
€258 EUR