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Oval|Lab Grown|IGI

1.04ct K SI1 Oval Lab Grown Diamond

ID • K/SI1 • IGI LG451056943

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056943

Diamond specifications and retailer prices

From £303 GBP
As of November 5, 2026
Save £1,159 GBP (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,461 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.04ct lab-grown oval diamond

This 1.04ct lab-grown oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056943 or 451056943. Listed at 10 retailers as of November 5, 2026, with prices from £303 to £1,461, a £1,159 spread on the same certified stone. MOH London lists it at £1,461. 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

1.04
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056943
Dimensions7.74 × 5.85 × 3.68 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
7.74 mm5.85 mm1.04 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056943
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.9%

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: £1,461 GBP|Low: £303 GBP|High: £1,483 GBP|Avg: £752 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5£303 GBP
Retailer 6£375 GBP
Retailer 3£486 GBP
Retailer 2£560 GBP
Retailer 7£594 GBP
Retailer 8£674 GBP
Retailer 4£1,052 GBP
MOH London£1,461 GBP

37 data points across 8 retailers

10 retailers£303 GBP to £1,461 GBP

A
Cheapest Retailer
-
£303 GBP
A
Retailer 2
-
£338 GBP
View
Retailer 3
-
£375 GBP
View
Price last confirmed 12 days ago
B+
Retailer 4
-
£375 GBP
View
B+
Retailer 5
-
£486 GBP
View
B+
Retailer 6
-
£560 GBP
View
B+
Retailer 7
-
£594 GBP
View
B
Retailer 8
-
£1,052 GBP
View
B
Retailer 9
-
£1,206 GBP
View
Most Expensive
B
MOH London
LG451056943 · Nov 5
£1,461 GBP
View
9 more retailers have this diamond
Prices start from £303 GBPSave up to £1,159 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
1.04ct Oval
£303 GBP