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Oval|Lab Grown|IGI

1.57ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG499105141

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG499105141

Diamond specifications and retailer prices

From £619 GBP
$830 USD
As of October 29, 2026
Save £2,639 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,259 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.57ct lab-grown oval diamond

This 1.57ct 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 LG499105141 or 499105141. Listed at 10 retailers as of October 29, 2026, with prices from £619 to £3,259, a £2,639 spread on the same certified stone. MOH London lists it at £3,259. 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

1.57
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105141
Dimensions9.31 × 6.49 × 4.10 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.31 mm6.49 mm1.57 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105141
Side View
Table 61.0%Crown 36.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.2%

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: Oct 29
Current: £3,259 GBP|Low: £619 GBP|High: £3,285 GBP|Avg: £1,603 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2£619 GBP
Retailer 7£956 GBP
Retailer 4£974 GBP
Retailer 6£1,435 GBP
Retailer 3£1,602 GBP
Retailer 5£1,988 GBP
Retailer 8£2,258 GBP
MOH London£3,259 GBP

11 data points across 8 retailers

10 retailers£619 GBP to £3,259 GBP

A
Cheapest Retailer
-
£619 GBP
$830 USD
A
Retailer 2
-
£869 GBP
$1,165 USD
View
A
Retailer 3
-
£946 GBP
$1,268 USD
View
A
Retailer 4
-
£974 GBP
$1,305 USD
View
Final sale: no returns
Retailer 5
-
£1,009 GBP
$1,352 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,009 GBP
$1,352 USD
View
B
Retailer 7
-
£1,602 GBP
$2,146 USD
View
B
Retailer 8
-
£1,891 GBP
$2,534 USD
View
B
Retailer 9
-
£1,988 GBP
$2,664 USD
View
Most Expensive
B
MOH London
LG499105141 · Oct 29
£3,259 GBP
View
9 more retailers have this diamond
Prices start from £619 GBPSave up to £2,639 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
1.57ct Oval
£619 GBP