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Oval|Lab Grown|IGI

2.51ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG451056210

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056210

Diamond specifications and retailer prices

From $1,410 USD
As of October 30, 2026
Save $7,295 USD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,705 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 LG451056210 or 451056210. Listed at 11 retailers as of October 29, 2026, with prices from $1,410 to $8,705, a $7,295 spread on the same certified stone. MOH London lists it at $8,705. 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 angle35.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056210
Dimensions10.49 × 7.85 × 4.80 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.49 mm7.85 mm2.51 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056210
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.1%

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 30
Current: $8,705 USD|Low: $1,410 USD|High: $12,225 USD|Avg: $5,201 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$2,945 USD
Retailer 7$3,297 USD
Retailer 5$3,416 USD
Retailer 8$3,575 USD
Retailer 9$4,125 USD
Retailer 3$4,908 USD
Retailer 6$5,311 USD
MOH London$8,705 USD
Retailer 10$12,225 USD

15 data points across 10 retailers

11 retailers$1,410 USD to $8,705 USD

A
Cheapest Retailer
-
$1,410 USD
B+
Retailer 2
-
$2,945 USD
View
B+
Retailer 3
-
$3,204 USD
View
B+
Retailer 4
-
$3,297 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,416 USD
View
Retailer 6
-
$3,416 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$3,575 USD
View
B
Retailer 8
-
$4,269 USD
View
B
Retailer 9
-
$4,908 USD
View
B
Retailer 10
-
$5,311 USD
View
Most Expensive
B
MOH London
LG451056210 · Oct 29
$8,705 USD
£6,854 GBP
View
10 more retailers have this diamond
Prices start from $1,410 USDSave up to $7,295 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