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Oval|Lab Grown|IGI

1.55ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG436074867

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436074867

Diamond specifications and retailer prices

From £612 GBP
$820 USD
As of October 29, 2026
Save £2,594 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,206 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.55ct lab-grown oval diamond

This 1.55ct lab-grown oval sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074867 or 436074867. Listed at 10 retailers as of October 27, 2026, with prices from £612 to £3,206, a £2,594 spread on the same certified stone. MOH London lists it at £3,206. 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

1.55
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074867
Dimensions9.53 × 6.41 × 3.92 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.53 mm6.41 mm1.55 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436074867
Side View
Table 59.0%Crown 35.5°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.2%

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: £3,206 GBP|Low: £612 GBP|High: £3,240 GBP|Avg: £1,422 GBP|-1.1%
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£612 GBP
Retailer 2£859 GBP
Retailer 8£934 GBP
Retailer 9£961 GBP
Retailer 5£996 GBP
Retailer 11£1,420 GBP
Retailer 6£1,584 GBP
Retailer 7£1,867 GBP
Retailer 10£1,964 GBP
Retailer 3£2,230 GBP
MOH London£3,206 GBP

12 data points across 11 retailers

10 retailers£612 GBP to £3,206 GBP

A
Cheapest Retailer
-
£612 GBP
$820 USD
B+
Retailer 2
-
£859 GBP
$1,151 USD
View
B+
Retailer 3
-
£934 GBP
$1,252 USD
View
B+
Retailer 4
-
£961 GBP
$1,288 USD
View
Final sale: no returns
Retailer 5
-
£996 GBP
$1,335 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£996 GBP
$1,335 USD
View
B
Retailer 7
-
£1,584 GBP
$2,122 USD
View
B
Retailer 8
-
£1,867 GBP
$2,502 USD
View
B
Retailer 9
-
£1,964 GBP
$2,631 USD
View
Most Expensive
B
MOH London
LG436074867 · Oct 27
£3,206 GBP
View
9 more retailers have this diamond
Prices start from £612 GBPSave up to £2,594 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
1.55ct Oval
£612 GBP