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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 $369 SGD
$288 USD
As of October 26, 2026
Save $2,258 SGD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,627 SGD at Brilliant Earth · As of October 29, 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 19 retailers as of October 26, 2026, with prices from $369 to $2,627, a $2,258 spread on the same certified stone. Brilliant Earth lists it at $2,627. 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
Colour
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: $2,627 SGD|Low: $413 SGD|High: $2,743 SGD|Avg: $1,086 SGD|-4.2%
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
October 29, 2026
Retailer 4$413 SGD
Retailer 7$428 SGD
Retailer 10$660 SGD
Retailer 14$691 SGD
Retailer 2$713 SGD
Retailer 15$751 SGD
Retailer 11$802 SGD
Retailer 6$846 SGD
Retailer 8$856 SGD
Retailer 5$1,011 SGD
Retailer 3$1,169 SGD
Retailer 9$1,453 SGD
Retailer 12$1,836 SGD
Retailer 13$1,980 SGD
Brilliant Earth$2,627 SGD

40 data points across 15 retailers

19 retailers$369 SGD to $2,627 SGD

A
Cheapest Retailer
-
$369 SGD
$288 USD
A
Retailer 2
-
$413 SGD
$322 USD
View
Final sale: no returns
A
Retailer 3
-
$428 SGD
$334 USD
View
A
Retailer 4
-
$458 SGD
$357 USD
View
A
Retailer 5
-
$509 SGD
HK$3,100 HKD
View
A
Retailer 6
-
$660 SGD
$515 USD
View
Retailer 7
-
$691 SGD
£425 GBP
View
Price last confirmed 13 days ago
A
Retailer 8
-
$713 SGD
€530 EUR
View
B+
Retailer 9
-
$751 SGD
$586 USD
View
A
Retailer 10
-
$802 SGD
£493 GBP
View
A
Retailer 11
-
$846 SGD
$660 USD
View
A
Retailer 12
-
$856 SGD
A$1,028 AUD
View
A
Retailer 13
-
$1,011 SGD
$789 USD
View
B+
Retailer 14
-
$1,169 SGD
$912 USD
View
B+
Retailer 15
-
$1,453 SGD
View
B+
Retailer 16
-
$1,471 SGD
$1,148 USD
View
B+
Retailer 17
-
$1,836 SGD
£1,128 GBP
View
Retailer 18
-
$1,980 SGD
$1,545 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
19930280A · Oct 29
$2,627 SGD
$2,050 USD
View
18 more retailers have this diamond
Prices start from $369 SGDSave up to $2,258 SGD

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
$369 SGD