CaratHunter
Plans
Oval|Lab Grown|IGI

1.56ct H SI2 Oval Lab Grown Diamond

ID • H/SI2 • IGI LG451057308

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057308

Diamond specifications and retailer prices

From £642 GBP
$860 USD
As of October 29, 2026
Save £2,846 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,488 GBP at MOH London · As of October 27, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057308 or 451057308. Listed at 10 retailers as of October 27, 2026, with prices from £642 to £3,488, a £2,846 spread on the same certified stone. MOH London lists it at £3,488. 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
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057308
Dimensions9.06 × 6.58 × 4.10 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
9.06 mm6.58 mm1.56 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451057308
Side View
Table 57.0%Crown 36°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 62.3%

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: £3,488 GBP|Low: £642 GBP|High: £3,525 GBP|Avg: £1,617 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
October 25, 2026
Retailer 4£642 GBP
Retailer 2£934 GBP
Retailer 8£1,017 GBP
Retailer 9£1,046 GBP
Retailer 5£1,084 GBP
Retailer 11£1,504 GBP
Retailer 6£1,718 GBP
Retailer 10£2,021 GBP
Retailer 7£2,032 GBP
Retailer 3£2,427 GBP
MOH London£3,488 GBP

14 data points across 11 retailers

10 retailers£642 GBP to £3,488 GBP

A
Cheapest Retailer
-
£642 GBP
$860 USD
B+
Retailer 2
-
£934 GBP
$1,252 USD
View
B+
Retailer 3
-
£1,017 GBP
$1,363 USD
View
B+
Retailer 4
-
£1,046 GBP
$1,401 USD
View
Final sale: no returns
Retailer 5
-
£1,084 GBP
$1,453 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,084 GBP
$1,453 USD
View
B
Retailer 7
-
£1,718 GBP
$2,302 USD
View
B
Retailer 8
-
£2,021 GBP
$2,708 USD
View
B
Retailer 9
-
£2,032 GBP
$2,723 USD
View
Most Expensive
B
MOH London
LG451057308 · Oct 27
£3,488 GBP
View
9 more retailers have this diamond
Prices start from £642 GBPSave up to £2,846 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
£642 GBP