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Oval|Lab Grown|IGI

2.51ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG451057758

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057758

Diamond specifications and retailer prices

From $1,410 USD
As of October 31, 2026
Save $6,958 USD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,368 USD at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct lab-grown oval diamond

This 2.51ct lab-grown oval sits in the two to three carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057758 or 451057758. Listed at 11 retailers as of October 29, 2026, with prices from $1,410 to $8,368, a $6,958 spread on the same certified stone. MOH London lists it at $8,368. 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

2.51
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057758
Dimensions10.41 × 7.79 × 4.82 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.41 mm7.79 mm2.51 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057758
Side View
Table 54.5%Crown 34°Girdle: STK-VTKPavilion 40.2°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $8,368 USD|Low: $1,410 USD|High: $11,124 USD|Avg: $4,761 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$1,410 USD
Retailer 4$2,680 USD
Retailer 7$3,000 USD
Retailer 5$3,109 USD
Retailer 8$3,270 USD
Retailer 9$3,783 USD
Retailer 3$4,561 USD
Retailer 6$4,839 USD
MOH London$8,368 USD
Retailer 10$11,124 USD

15 data points across 10 retailers

11 retailers$1,410 USD to $8,368 USD

A
Cheapest Retailer
-
$1,410 USD
B+
Retailer 2
-
$2,680 USD
View
B+
Retailer 3
-
$2,916 USD
View
B+
Retailer 4
-
$3,000 USD
View
Final sale: no returns
Retailer 5
-
$3,109 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$3,109 USD
View
B+
Retailer 7
-
$3,270 USD
View
B
Retailer 8
-
$4,273 USD
View
B
Retailer 9
-
$4,561 USD
View
B
Retailer 10
-
$4,839 USD
View
Most Expensive
B
MOH London
LG451057758 · Oct 29
$8,368 USD
£6,589 GBP
View
10 more retailers have this diamond
Prices start from $1,410 USDSave up to $6,958 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
2.51ct Oval
$1,410 USD