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Oval|Lab Grown|IGI

2.57ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG754533605

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754533605

Diamond specifications and retailer prices

From $468 USD
As of October 25, 2026
Save $3,762 USD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,230 USD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 2.57ct lab-grown oval diamond

This 2.57ct lab-grown oval 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 LG754533605 or 754533605. Listed at 19 retailers as of October 25, 2026, with prices from $468 to $4,230, a $3,762 spread on the same certified stone. Brilliant Earth lists it at $4,230. 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
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754533605
Dimensions11.24 × 7.69 × 4.70 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.24 mm7.69 mm2.57 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG754533605
Side View
Table 58.0%Crown 36.9°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 61.1%

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 25
Current: $4,230 USD|Low: $314 USD|High: $4,360 USD|Avg: $1,251 USD|-3.0%
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
October 26, 2026
Retailer 4$314 USD
Retailer 12$428 USD
Retailer 6$468 USD
Retailer 9$510 USD
Retailer 11$559 USD
Retailer 2$601 USD
Retailer 3$726 USD
Retailer 8$861 USD
Retailer 13$971 USD
Retailer 14$1,167 USD
Retailer 7$1,394 USD
Retailer 5$1,450 USD
Retailer 10$2,190 USD
Brilliant Earth$4,230 USD

35 data points across 14 retailers

19 retailers$468 USD to $4,230 USD

A
Retailer 1
-
$307 USD
Price last confirmed 36 days ago
A
Retailer 2
-
$307 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$381 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
$424 USD
View
Price last confirmed 33 days ago
A
Retailer 5
-
$428 USD
£337 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
$464 USD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
$468 USD
View
A
Retailer 8
-
$510 USD
View
A
Retailer 9
-
$601 USD
£473 GBP
View
A
Retailer 10
-
$726 USD
View
B+
Retailer 11
-
$835 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$861 USD
View
B+
Retailer 13
-
$971 USD
View
B+
Retailer 14
-
$1,167 USD
View
B+
Retailer 15
-
$1,225 USD
View
Price last confirmed 19 days ago
B
Retailer 16
-
$1,394 USD
£1,098 GBP
View
B
Retailer 17
-
$1,450 USD
View
B
Retailer 18
-
$2,190 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
16844908A · Oct 26
$4,230 USD
View
18 more retailers have this diamond
Prices start from $468 USDSave up to $3,762 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
2.57ct Oval
$468 USD