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Oval|Lab Grown|IGI

1.51ct H SI2 Oval Lab Grown Diamond

ID • H/SI2 • IGI LG436046292

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436046292

Diamond specifications and retailer prices

From £627 GBP
$840 USD
As of October 29, 2026
Save £2,752 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,379 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046292 or 436046292. Listed at 10 retailers as of October 27, 2026, with prices from £627 to £3,379, a £2,752 spread on the same certified stone. MOH London lists it at £3,379. 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

1.51
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046292
Dimensions8.83 × 6.55 × 4.18 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.83 mm6.55 mm1.51 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046292
Side View
Table 57.5%Crown 35.8°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.8%

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 29
Current: £3,379 GBP|Low: £627 GBP|High: £3,420 GBP|Avg: £1,575 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 25, 2026
Retailer 4£627 GBP
Retailer 2£905 GBP
Retailer 8£985 GBP
Retailer 9£1,014 GBP
Retailer 5£1,050 GBP
Retailer 11£1,484 GBP
Retailer 6£1,665 GBP
Retailer 7£1,969 GBP
Retailer 10£2,012 GBP
Retailer 3£2,351 GBP
MOH London£3,379 GBP

14 data points across 11 retailers

10 retailers£627 GBP to £3,379 GBP

A
Cheapest Retailer
-
£627 GBP
$840 USD
A
Retailer 2
-
£905 GBP
$1,213 USD
View
B+
Retailer 3
-
£985 GBP
$1,320 USD
View
B+
Retailer 4
-
£1,014 GBP
$1,358 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,050 GBP
$1,407 USD
View
Retailer 6
-
£1,050 GBP
$1,407 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,665 GBP
$2,231 USD
View
B
Retailer 8
-
£1,969 GBP
$2,638 USD
View
B
Retailer 9
-
£2,012 GBP
$2,696 USD
View
Most Expensive
B
MOH London
LG436046292 · Oct 27
£3,379 GBP
View
9 more retailers have this diamond
Prices start from £627 GBPSave up to £2,752 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
1.51ct Oval
£627 GBP