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Oval|Lab Grown|IGI

1.55ct K SI1 Oval Lab Grown Diamond

ID • K/SI1 • IGI LG445037395

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037395

Diamond specifications and retailer prices

From £702 GBP
As of November 5, 2026
Save £2,062 GBP (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,764 GBP at MOH London · As of November 1, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037395 or 445037395. Listed at 9 retailers as of November 1, 2026, with prices from £702 to £2,764, a £2,062 spread on the same certified stone. MOH London lists it at £2,764. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037395
Dimensions9.14 × 6.64 × 4.00 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.14 mm6.64 mm1.55 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445037395
Side View
Table 59.5%Crown 34°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 60.2%

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 5
Current: £2,764 GBP|Low: £675 GBP|High: £2,797 GBP|Avg: £1,491 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4£702 GBP
Retailer 8£764 GBP
Retailer 5£815 GBP
Retailer 2£945 GBP
Retailer 9£1,201 GBP
Retailer 6£1,304 GBP
Retailer 3£1,756 GBP
Retailer 7£2,291 GBP
Retailer 10£2,332 GBP
MOH London£2,764 GBP

18 data points across 10 retailers

9 retailers£702 GBP to £2,764 GBP

A
Cheapest Retailer
-
£702 GBP
A
Retailer 2
-
£764 GBP
View
Retailer 3
-
£815 GBP
View
Price last confirmed 25 days ago
A
Retailer 4
-
£815 GBP
View
A
Retailer 5
-
£945 GBP
View
B+
Retailer 6
-
£1,304 GBP
View
B
Retailer 7
-
£1,756 GBP
View
B
Retailer 8
-
£2,291 GBP
View
Most Expensive
B
MOH London
LG445037395 · Nov 1
£2,764 GBP
View
8 more retailers have this diamond
Prices start from £702 GBPSave up to £2,062 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
£702 GBP