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Oval|Lab Grown|IGI

1.56ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG636421534

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG636421534

Diamond specifications and retailer prices

From £226 GBP
$303 USD
As of October 29, 2026
Save £1,781 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,008 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG636421534 or 636421534. Listed at 12 retailers as of October 29, 2026, with prices from £226 to £2,008, a £1,781 spread on the same certified stone. Do Amore Diamonds lists it at £2,008. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636421534
Dimensions9.66 × 6.46 × 3.92 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.66 mm6.46 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636421534
Side View
Table 60.0%Crown 32.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.7%

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: £554 GBP|Low: £180 GBP|High: £2,008 GBP|Avg: £461 GBP|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5£226 GBP
Retailer 11£253 GBP
Retailer 9£262 GBP
Retailer 2£280 GBP
Retailer 6£280 GBP
Retailer 3£313 GBP
Retailer 4£396 GBP
Retailer 10£531 GBP
Retailer 1£554 GBP
Retailer 7£871 GBP
Retailer 8£994 GBP

43 data points across 11 retailers

12 retailers£226 GBP to £2,008 GBP

A
Cheapest Retailer
-
£226 GBP
$303 USD
A
Retailer 2
-
£253 GBP
$339 USD
View
Final sale: no returns
A
Retailer 3
-
£262 GBP
$351 USD
View
A
Retailer 4
-
£280 GBP
$375 USD
View
A
Retailer 5
-
£280 GBP
$375 USD
View
A
Retailer 6
-
£313 GBP
$420 USD
View
B+
Retailer 7
-
£396 GBP
$530 USD
View
B+
Retailer 8
-
£531 GBP
$711 USD
View
B+
Retailer 9
-
£554 GBP
View
B
Retailer 10
-
£871 GBP
$1,167 USD
View
B
Retailer 11
-
£994 GBP
$1,332 USD
View
Most Expensive
B
Do Amore Diamonds
27-F1060B723 · Oct 29
£2,008 GBP
$2,690 USD
View
11 more retailers have this diamond
Prices start from £226 GBPSave up to £1,781 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
£226 GBP