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Marquise|Lab Grown|IGI

2.54ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG826644897

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826644897

Diamond specifications and retailer prices

From $474 USD
HK$3,700 HKD
As of October 30, 2026
Save $1,816 USD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,290 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.54ct lab-grown marquise diamond

This 2.54ct lab-grown marquise 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 LG826644897 or 826644897. Listed at 16 retailers as of October 30, 2026, with prices from $474 to $2,290, a $1,816 spread on the same certified stone. Brilliant Earth lists it at $2,290. 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

2.54
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826644897
Dimensions14.42 × 7.30 × 4.28 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.42 mm7.30 mm2.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826644897
Side View
Table 63.0%Crown 32.9°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 58.6%

Caratlytics Score

How it works →
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 30
Current: $2,290 USD|Low: $392 USD|High: $3,750 USD|Avg: $1,191 USD|-38.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 12$392 USD
Retailer 6$545 USD
Retailer 5$655 USD
Retailer 8$671 USD
Retailer 11$697 USD
Retailer 7$776 USD
Retailer 4$838 USD
Retailer 2$1,052 USD
Retailer 3$1,384 USD
Retailer 9$1,706 USD
Retailer 10$2,060 USD
Brilliant Earth$2,290 USD

41 data points across 12 retailers

16 retailers$474 USD to $2,290 USD

Retailer 1
-
$350 USD
Price last confirmed 14 days ago
Retailer 2
-
$406 USD
View
Price last confirmed 16 days ago
Retailer 3
-
$434 USD
View
Price last confirmed 27 days ago
A
Retailer 4
-
$474 USD
HK$3,700 HKD
View
A
Retailer 5
-
$545 USD
£429 GBP
View
A
Retailer 6
-
$655 USD
View
A
Retailer 7
-
$671 USD
€639 EUR
View
B+
Retailer 8
-
$697 USD
View
A
Retailer 9
-
$776 USD
£611 GBP
View
B+
Retailer 10
-
$838 USD
View
B
Retailer 11
-
$1,052 USD
View
B
Retailer 12
-
$1,384 USD
SGD 1,870 SGD
View
Retailer 13
-
$1,395 USD
View
Price last confirmed 14 days ago
Retailer 14
-
$1,706 USD
£1,343 GBP
View
Price last confirmed 9 days ago
B
Retailer 15
-
$2,060 USD
View
Most Expensive
B
Brilliant Earth
20881561A · Oct 30
$2,290 USD
View
15 more retailers have this diamond
Prices start from $474 USDSave up to $1,816 USD

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
2.54ct Marquise
$474 USD