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Round|Lab Grown|IGI

1.34ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG779641748

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779641748

Diamond specifications and retailer prices

From £134 GBP
$180 USD
As of October 29, 2026
Save £708 GBP (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £843 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.34ct lab-grown round diamond

This 1.34ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG779641748 or 779641748. Listed at 15 retailers as of October 29, 2026, with prices from £134 to £843, a £708 spread on the same certified stone. Reve Diamonds lists it at £843. 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

1.34
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779641748
Dimensions7.14 × 7.10 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.14 mm7.10 mm1.34 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779641748
Side View
Table 60.0%Crown 33.2°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.4%

Caratlytics Score

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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: £296 GBP|Low: £129 GBP|High: £843 GBP|Avg: £369 GBP|+5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 31, 2026
Retailer 6£134 GBP
Retailer 7£149 GBP
Retailer 8£166 GBP
Retailer 9£295 GBP
Retailer 1£296 GBP
Retailer 4£326 GBP
Retailer 2£332 GBP
Retailer 10£355 GBP
Retailer 5£565 GBP
Retailer 3£782 GBP
Reve Diamonds£843 GBP

43 data points across 11 retailers

15 retailers£134 GBP to £843 GBP

A
Cheapest Retailer
-
£134 GBP
$180 USD
A
Retailer 2
-
£149 GBP
$200 USD
View
Final sale: no returns
A
Retailer 3
-
£156 GBP
$209 USD
View
A
Retailer 4
-
£166 GBP
$223 USD
View
A
Retailer 5
-
£166 GBP
$223 USD
View
B+
Retailer 6
-
£295 GBP
$395 USD
View
A
Retailer 7
-
£296 GBP
View
Retailer 8
-
£326 GBP
View
Price last confirmed 14 days ago
B+
Retailer 9
-
£332 GBP
$445 USD
View
B+
Retailer 10
-
£355 GBP
$476 USD
View
B
Retailer 11
-
£535 GBP
$717 USD
View
B
Retailer 12
-
£565 GBP
$757 USD
View
B
Retailer 13
-
£575 GBP
$771 USD
View
B
Retailer 14
-
£782 GBP
View
Most Expensive
B
Reve Diamonds
C1594CEB9 · Oct 30
£843 GBP
$1,129 USD
View
14 more retailers have this diamond
Prices start from £134 GBPSave up to £708 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
1.34ct Round
£134 GBP