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Oval|Lab Grown|IGI

1.57ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG442067564

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG442067564

Diamond specifications and retailer prices

From £642 GBP
$860 USD
As of October 31, 2026
Save £3,127 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,769 GBP at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442067564 or 442067564. Listed at 12 retailers as of October 31, 2026, with prices from £642 to £3,769, a £3,127 spread on the same certified stone. MOH London lists it at £3,769. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442067564
Dimensions8.92 × 6.64 × 4.18 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.92 mm6.64 mm1.57 ctI / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG442067564
Side View
Table 57.0%Crown 35°Girdle: MED-THKPavilion 40.7°Culet: NoneDepth 63.0%

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 31
Current: £3,769 GBP|Low: £642 GBP|High: £3,820 GBP|Avg: £1,727 GBP
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
Retailer 14
November 2, 2026
Retailer 8£642 GBP
Retailer 7£1,011 GBP
Retailer 12£1,100 GBP
Retailer 13£1,131 GBP
Retailer 9£1,173 GBP
Retailer 14£1,173 GBP
Retailer 3£1,302 GBP
Retailer 5£1,610 GBP
Retailer 2£1,675 GBP
Retailer 10£1,854 GBP
Retailer 4£2,187 GBP
Retailer 11£2,199 GBP
Retailer 6£3,359 GBP
MOH London£3,769 GBP

39 data points across 14 retailers

12 retailers£642 GBP to £3,769 GBP

A
Cheapest Retailer
-
£642 GBP
$860 USD
B+
Retailer 2
-
£1,011 GBP
$1,355 USD
View
B+
Retailer 3
-
£1,100 GBP
$1,474 USD
View
B+
Retailer 4
-
£1,131 GBP
$1,516 USD
View
Final sale: no returns
Retailer 5
-
£1,173 GBP
$1,572 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
£1,173 GBP
$1,572 USD
View
B+
Retailer 7
-
£1,302 GBP
$1,745 USD
View
B
Retailer 8
-
£1,675 GBP
View
B
Retailer 9
-
£1,854 GBP
$2,484 USD
View
B
Retailer 10
-
£2,187 GBP
$2,930 USD
View
B
Retailer 11
-
£2,199 GBP
$2,946 USD
View
Most Expensive
B
MOH London
LG442067564 · Nov 1
£3,769 GBP
View
11 more retailers have this diamond
Prices start from £642 GBPSave up to £3,127 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
£642 GBP