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Oval|Lab Grown|IGI

1.56ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG436047325

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436047325

Diamond specifications and retailer prices

From £612 GBP
$820 USD
As of October 29, 2026
Save £2,614 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,225 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.56ct lab-grown oval diamond

This 1.56ct 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 LG436047325 or 436047325. Listed at 10 retailers as of October 25, 2026, with prices from £612 to £3,225, a £2,614 spread on the same certified stone. MOH London lists it at £3,225. 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

1.56
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047325
Dimensions9.37 × 6.56 × 4.00 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.37 mm6.56 mm1.56 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436047325
Side View
Table 58.0%Crown 33.6°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 61.0%

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: Oct 29
Current: £3,225 GBP|Low: £612 GBP|High: £3,264 GBP|Avg: £1,424 GBP|+0.1%
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
October 25, 2026
Retailer 6£612 GBP
Retailer 2£864 GBP
Retailer 10£940 GBP
Retailer 4£953 GBP
Retailer 11£967 GBP
Retailer 7£1,002 GBP
Retailer 12£1,002 GBP
Retailer 3£1,428 GBP
Retailer 8£1,593 GBP
Retailer 9£1,879 GBP
Retailer 13£1,976 GBP
Retailer 5£2,245 GBP
MOH London£3,225 GBP

16 data points across 13 retailers

10 retailers£612 GBP to £3,225 GBP

A
Cheapest Retailer
-
£612 GBP
$820 USD
A
Retailer 2
-
£864 GBP
$1,158 USD
View
A
Retailer 3
-
£940 GBP
$1,260 USD
View
A
Retailer 4
-
£967 GBP
$1,296 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,002 GBP
$1,343 USD
View
Retailer 6
-
£1,002 GBP
$1,343 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,593 GBP
$2,135 USD
View
B
Retailer 8
-
£1,879 GBP
$2,518 USD
View
B
Retailer 9
-
£1,976 GBP
$2,647 USD
View
Most Expensive
B
MOH London
LG436047325 · Oct 25
£3,225 GBP
View
9 more retailers have this diamond
Prices start from £612 GBPSave up to £2,614 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
1.56ct Oval
£612 GBP