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1.51ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG494173490

Certificate IGI LG494173490

Diamond specifications and retailer prices

From £1,659 GBP
$2,209 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: £1,659 GBP at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494173490 or 494173490. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.51
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG494173490
Dimensions7.31 × 7.34 mm
L/W Ratio1.00
Top View
7.31 mm7.34 mm1.51 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494173490
Side View
Table 55.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 29
Current: £1,659 GBP|Low: £1,579 GBP|High: £2,727 GBP|Avg: £2,014 GBP|-39.2%
September 23, 2026
B2C Jewels£1,659 GBP

4 data points across 1 retailer

1 retailer

C
B2C Jewels
20030065 · Oct 29
£1,659 GBP
$2,209 USD
View

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C
1.51ct Round
£1,659 GBP