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Oval|Lab Grown|IGI

1.54ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG445037120

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037120

Diamond specifications and retailer prices

From £627 GBP
$840 USD
As of October 31, 2026
Save £3,072 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,698 GBP at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037120 or 445037120. Listed at 12 retailers as of October 31, 2026, with prices from £627 to £3,698, a £3,072 spread on the same certified stone. MOH London lists it at £3,698. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037120
Dimensions8.92 × 6.61 × 4.16 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.92 mm6.61 mm1.54 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037120
Side View
Table 57.5%Crown 34.9°Girdle: MED-THKPavilion 41.2°Culet: NoneDepth 62.9%

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 31
Current: £3,698 GBP|Low: £627 GBP|High: £3,743 GBP|Avg: £1,694 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 8£627 GBP
Retailer 7£993 GBP
Retailer 12£1,080 GBP
Retailer 13£1,111 GBP
Retailer 9£1,151 GBP
Retailer 14£1,151 GBP
Retailer 3£1,280 GBP
Retailer 5£1,583 GBP
Retailer 2£1,644 GBP
Retailer 10£1,820 GBP
Retailer 4£2,146 GBP
Retailer 11£2,158 GBP
Retailer 6£3,296 GBP
MOH London£3,698 GBP

38 data points across 14 retailers

12 retailers£627 GBP to £3,698 GBP

A
Cheapest Retailer
-
£627 GBP
$840 USD
B+
Retailer 2
-
£993 GBP
$1,330 USD
View
B+
Retailer 3
-
£1,080 GBP
$1,447 USD
View
B+
Retailer 4
-
£1,111 GBP
$1,488 USD
View
Final sale: no returns
Retailer 5
-
£1,151 GBP
$1,542 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
£1,151 GBP
$1,542 USD
View
B+
Retailer 7
-
£1,280 GBP
$1,715 USD
View
B
Retailer 8
-
£1,644 GBP
View
B
Retailer 9
-
£1,820 GBP
$2,439 USD
View
B
Retailer 10
-
£2,146 GBP
$2,875 USD
View
B
Retailer 11
-
£2,158 GBP
$2,891 USD
View
Most Expensive
B
MOH London
LG445037120 · Nov 1
£3,698 GBP
View
11 more retailers have this diamond
Prices start from £627 GBPSave up to £3,072 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
£627 GBP