CaratHunter
Plans
Oval|Lab Grown|IGI

2.51ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG445037378

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037378

Diamond specifications and retailer prices

From $1,350 USD
As of October 30, 2026
Save $7,131 USD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,481 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037378 or 445037378. Listed at 10 retailers as of October 29, 2026, with prices from $1,350 to $8,481, a $7,131 spread on the same certified stone. MOH London lists it at $8,481. 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
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037378
Dimensions10.46 × 7.67 × 4.88 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
10.46 mm7.67 mm2.51 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037378
Side View
Table 58.0%Crown 36.6°Girdle: STK-THKPavilion 41.3°Culet: NoneDepth 63.6%

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: $8,481 USD|Low: $1,350 USD|High: $8,548 USD|Avg: $4,535 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,350 USD
Retailer 5$2,869 USD
Retailer 9$3,122 USD
Retailer 10$3,213 USD
Retailer 6$3,328 USD
Retailer 11$4,028 USD
Retailer 8$4,575 USD
Retailer 4$4,782 USD
Retailer 7$5,175 USD
Retailer 3$7,450 USD
MOH London$8,481 USD

18 data points across 11 retailers

10 retailers$1,350 USD to $8,481 USD

A
Cheapest Retailer
-
$1,350 USD
B+
Retailer 2
-
$2,869 USD
View
B+
Retailer 3
-
$3,122 USD
View
B+
Retailer 4
-
$3,213 USD
View
Final sale: no returns
Retailer 5
-
$3,328 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$3,328 USD
View
B
Retailer 7
-
$4,575 USD
View
B
Retailer 8
-
$4,782 USD
View
B
Retailer 9
-
$5,175 USD
View
Most Expensive
B
MOH London
LG445037378 · Oct 29
$8,481 USD
£6,678 GBP
View
9 more retailers have this diamond
Prices start from $1,350 USDSave up to $7,131 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
$1,350 USD