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Heart|Lab Grown|IGI

2.57ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • IGI LG668469150

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG668469150

Diamond specifications and retailer prices

From €550 EUR
$615 USD
As of October 31, 2026
Save €1,911 EUR (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,461 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.57ct lab-grown heart diamond

This 2.57ct lab-grown heart 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 LG668469150 or 668469150. Listed at 13 retailers as of October 31, 2026, with prices from €550 to €2,461, a €1,911 spread on the same certified stone. Brilliant Earth lists it at €2,461. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668469150
Dimensions8.32 × 9.59 × 5.59 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.32 mm9.59 mm2.57 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668469150
Side View
Table 57.0%Crown 33.5°Girdle: MED-STKPavilion 39°Culet: NoneDepth 58.3%

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 31
Current: €2,461 EUR|Low: €367 EUR|High: €3,625 EUR|Avg: €1,106 EUR|-32.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7€417 EUR
Retailer 9€514 EUR
Retailer 6€550 EUR
Retailer 3€666 EUR
Retailer 10€742 EUR
Retailer 5€754 EUR
Retailer 11€899 EUR
Retailer 8€1,171 EUR
Retailer 4€1,342 EUR
Retailer 2€1,630 EUR
Brilliant Earth€2,461 EUR

33 data points across 11 retailers

13 retailers€550 EUR to €2,461 EUR

Retailer 1
-
€363 EUR
$405 USD
Price last confirmed 35 days ago
Retailer 2
-
€417 EUR
$466 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
€417 EUR
$466 USD
View
Price last confirmed 7 days ago
Retailer 4
-
€514 EUR
£452 GBP
View
Price last confirmed 15 days ago
A
Retailer 5
-
€550 EUR
$615 USD
View
B+
Retailer 6
-
€666 EUR
$744 USD
View
B+
Retailer 7
-
€742 EUR
$829 USD
View
B+
Retailer 8
-
€754 EUR
£664 GBP
View
B+
Retailer 9
-
€899 EUR
$1,004 USD
View
B
Retailer 10
-
€1,171 EUR
$1,308 USD
View
B
Retailer 11
-
€1,342 EUR
$1,499 USD
View
B
Retailer 12
-
€1,630 EUR
£1,434 GBP
View
Most Expensive
B
Brilliant Earth
12460210A · Oct 31
€2,461 EUR
$2,750 USD
View
12 more retailers have this diamond
Prices start from €550 EURSave up to €1,911 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 Heart
€550 EUR