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Oval|Lab Grown|IGI

2.51ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG445036166

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445036166

Diamond specifications and retailer prices

From £1,052 GBP
$1,410 USD
As of October 30, 2026
Save £6,086 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £7,138 GBP 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445036166 or 445036166. Listed at 11 retailers as of October 29, 2026, with prices from £1,052 to £7,138, a £6,086 spread on the same certified stone. MOH London lists it at £7,138. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445036166
Dimensions10.65 × 7.70 × 4.83 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.65 mm7.70 mm2.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445036166
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.7%

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: £7,138 GBP|Low: £1,052 GBP|High: £10,025 GBP|Avg: £4,290 GBP|+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£1,052 GBP
Retailer 4£2,415 GBP
Retailer 7£2,704 GBP
Retailer 5£2,801 GBP
Retailer 8£2,918 GBP
Retailer 9£3,261 GBP
Retailer 3£3,943 GBP
Retailer 6£4,350 GBP
MOH London£7,138 GBP
Retailer 10£10,025 GBP

16 data points across 10 retailers

11 retailers£1,052 GBP to £7,138 GBP

A
Cheapest Retailer
-
£1,052 GBP
$1,410 USD
B+
Retailer 2
-
£2,415 GBP
$3,236 USD
View
B+
Retailer 3
-
£2,628 GBP
$3,521 USD
View
B
Retailer 4
-
£2,704 GBP
$3,623 USD
View
Final sale: no returns
B
Retailer 5
-
£2,801 GBP
$3,753 USD
View
Retailer 6
-
£2,802 GBP
$3,754 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
£2,918 GBP
$3,910 USD
View
B
Retailer 8
-
£3,500 GBP
$4,690 USD
View
B
Retailer 9
-
£3,943 GBP
$5,283 USD
View
B
Retailer 10
-
£4,350 GBP
$5,828 USD
View
Most Expensive
B
MOH London
LG445036166 · Oct 29
£7,138 GBP
View
10 more retailers have this diamond
Prices start from £1,052 GBPSave up to £6,086 GBP

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
£1,052 GBP