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Asscher|Lab Grown|IGI

4.25ct E SI1 Asscher Lab Grown Diamond

E/SI1 • IGI LG779643613

Certificate IGI LG779643613

Diamond specifications and retailer prices

From £2,933 GBP
$3,930 USD
As of October 30, 2026
Save £582 GBP (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,515 GBP at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

About this 4.25ct lab-grown asscher diamond

This 4.25ct lab-grown asscher sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included) and certified by IGI LG779643613 or 779643613. Listed at 3 retailers as of October 30, 2026, with prices from £2,933 to £3,515, a £582 spread on the same certified stone. Kay Jewelers lists it at £3,515. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.25
Carat
E
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG779643613
Dimensions8.88 × 8.67 mm
L/W Ratio1.02
Top View
8.88 mm8.67 mm4.25 ctE / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779643613
Side View
Table 63.0%CrownGirdle: MediumPavilionCulet: NoneDepth 68.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £3,515 GBP|Low: £2,933 GBP|High: £3,963 GBP|Avg: £3,517 GBP|-11.3%
Kay Jewelers
Retailer 2
Retailer 3
August 2, 2026
Retailer 3£2,933 GBP
Kay Jewelers£3,515 GBP
Retailer 2£3,515 GBP

7 data points across 3 retailers

3 retailers£2,933 GBP to £3,515 GBP

B
Cheapest Retailer
-
£2,933 GBP
$3,930 USD
C
Retailer 2
-
£3,515 GBP
$4,710 USD
View
Most Expensive
C
Kay Jewelers
258293121 · Oct 30
£3,515 GBP
$4,710 USD
View
2 more retailers have this diamond
Prices start from £2,933 GBPSave up to £582 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
4.25ct Asscher
£2,933 GBP