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Oval|Lab Grown|IGI

1.57ct G SI2 Oval Lab Grown Diamond

ID • G/SI2 • IGI LG436074849

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436074849

Diamond specifications and retailer prices

From £687 GBP
As of November 6, 2026
Save £1,514 GBP (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,201 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074849 or 436074849. Listed at 11 retailers as of November 5, 2026, with prices from £687 to £2,201, a £1,514 spread on the same certified stone. NZ Jewellers lists it at £2,201. 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
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074849
Dimensions8.94 × 6.65 × 4.14 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.94 mm6.65 mm1.57 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074849
Side View
Table 57.0%Crown 35.3°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,201 GBP|Low: £687 GBP|High: £3,824 GBP|Avg: £1,667 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4£687 GBP
Retailer 5£1,012 GBP
Retailer 8£1,101 GBP
Retailer 9£1,133 GBP
Retailer 6£1,174 GBP
Retailer 2£1,640 GBP
Retailer 7£1,856 GBP
NZ Jewellers£2,201 GBP
Retailer 3£3,762 GBP

44 data points across 9 retailers

11 retailers£687 GBP to £2,201 GBP

B+
Cheapest Retailer
-
£687 GBP
B
Retailer 2
-
£1,012 GBP
View
B
Retailer 3
-
£1,101 GBP
View
B
Retailer 4
-
£1,133 GBP
View
Final sale: no returns
Retailer 5
-
£1,174 GBP
View
Price last confirmed 25 days ago
B
Retailer 6
-
£1,174 GBP
View
B
Retailer 7
-
£1,640 GBP
View
B
Retailer 8
-
£1,856 GBP
View
B
Retailer 9
-
£2,189 GBP
View
Most Expensive
B
NZ Jewellers
61caac7b-df1e-4282-99de-105459cd2bd5 · Nov 5
£2,201 GBP
$2,946 USD
View
9 more retailers have this diamond
Prices start from £687 GBPSave up to £1,514 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.

B+
1.57ct Oval
£687 GBP