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Round|Lab Grown|IGI

1.29ct E SI1 Round Lab Grown Diamond

FR • E/SI1 • IGI LG760534226

Shape and cutting style on the report: Round brilliant

Certificate IGI LG760534226

Diamond specifications and retailer prices

From £290 GBP
As of November 3, 2026
Save £502 GBP (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £792 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.29ct lab-grown round diamond

This 1.29ct 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 standard cut grade and certified by IGI LG760534226 or 760534226. Listed at 5 retailers as of November 2, 2026, with prices from £290 to £792, a £502 spread on the same certified stone. MOH London lists it at £792. 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

1.29
Carat
E
Colour
SI1
Clarity
Fair
Cut

Specifications

CutFair
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle40.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760534226
Dimensions6.93 × 6.97 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.93 mm6.97 mm1.29 ctE / SI1
OriginLab Grown
CutFair
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG760534226
Side View
Table 67.0%Crown 40.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £792 GBP|Low: £280 GBP|High: £801 GBP|Avg: £490 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 2£290 GBP
Retailer 4£299 GBP
Retailer 5£411 GBP
Retailer 3£736 GBP
MOH London£792 GBP

17 data points across 5 retailers

5 retailers£290 GBP to £792 GBP

B+
Cheapest Retailer
-
£290 GBP
B+
Retailer 2
-
£299 GBP
View
B
Retailer 3
-
£411 GBP
View
C
Retailer 4
-
£736 GBP
View
Most Expensive
C
MOH London
LG760534226 · Nov 2
£792 GBP
View
4 more retailers have this diamond
Prices start from £290 GBPSave up to £502 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+
1.29ct Round
£290 GBP