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Oval|Lab Grown|GCAL

1.57ct E SI1 Oval Lab Grown Diamond

EX • E/SI1

Diamond specifications and retailer prices

From £1,200 GBP
CA$2,219 CAD
As of October 30, 2026
3 retailers carry this diamond
Most expensive: £1,200 GBP at Diamond Exchange Canada
View at Diamond Exchange Canada

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL. Listed at 3 retailers as of October 30, 2026. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions9.40 × 6.67 × 3.99 mm
L/W Ratio1.41
Top View
9.40 mm6.67 mm1.57 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGCAL
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCuletDepth 59.9%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 30
Current: £1,200 GBP|Low: £162 GBP|High: £1,200 GBP|Avg: £477 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 18, 2026
Retailer 2£182 GBP
Retailer 5£202 GBP
Retailer 6£207 GBP
Retailer 4£226 GBP
Retailer 3£801 GBP
Diamond Exchange Canada£1,200 GBP

16 data points across 6 retailers

3 retailers

Retailer 1
-
£169 GBP
$225 USD
Price last confirmed 37 days ago
Retailer 2
-
£207 GBP
$275 USD
View
Price last confirmed 37 days ago
Most Expensive
C
Diamond Exchange Canada
1986531630 · Oct 30
£1,200 GBP
CA$2,219 CAD
View
2 more retailers have this diamond

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.

C
1.57ct Oval
£1,200 GBP