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Oval|Lab Grown|IGI

1.54ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG436045227

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436045227

Diamond specifications and retailer prices

From £635 GBP
As of November 6, 2026
Save £3,014 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,649 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.54ct lab-grown oval diamond

This 1.54ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045227 or 436045227. Listed at 11 retailers as of November 5, 2026, with prices from £635 to £3,649, a £3,014 spread on the same certified stone. MOH London lists it at £3,649. 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

1.54
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045227
Dimensions8.92 × 6.61 × 4.11 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.92 mm6.61 mm1.54 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045227
Side View
Table 60.5%Crown 35.2°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.2%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £3,649 GBP|Low: £635 GBP|High: £3,703 GBP|Avg: £1,992 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2£635 GBP
Retailer 3£1,104 GBP
Retailer 6£1,236 GBP
Retailer 4£1,281 GBP
Retailer 7£1,408 GBP
Retailer 9£1,738 GBP
Retailer 5£2,020 GBP
Retailer 8£2,325 GBP
MOH London£3,649 GBP
Retailer 10£3,668 GBP

13 data points across 10 retailers

11 retailers£635 GBP to £3,649 GBP

A
Cheapest Retailer
-
£635 GBP
B+
Retailer 2
-
£1,104 GBP
View
B+
Retailer 3
-
£1,201 GBP
View
B+
Retailer 4
-
£1,236 GBP
View
Final sale: no returns
Retailer 5
-
£1,281 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£1,281 GBP
View
B+
Retailer 7
-
£1,408 GBP
View
B
Retailer 8
-
£2,020 GBP
View
B
Retailer 9
-
£2,325 GBP
View
B
Retailer 10
-
£2,401 GBP
View
Most Expensive
B
MOH London
LG436045227 · Nov 5
£3,649 GBP
View
10 more retailers have this diamond
Prices start from £635 GBPSave up to £3,014 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
1.54ct Oval
£635 GBP