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1.30ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG797676963

Shape and cutting style on the report: Round brilliant

Certificate IGI LG797676963

Diamond specifications and retailer prices

From £267 GBP
As of November 4, 2026
Save £446 GBP (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £712 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct 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 LG797676963 or 797676963. Listed at 7 retailers as of November 2, 2026, with prices from £267 to £712, a £446 spread on the same certified stone. MOH London lists it at £712. 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

1.30
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797676963
Dimensions6.94 × 6.91 × 4.38 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.94 mm6.91 mm1.30 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797676963
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
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: Nov 4
Current: £712 GBP|Low: £253 GBP|High: £721 GBP|Avg: £402 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 4, 2026
Retailer 3£267 GBP
Retailer 4£273 GBP
Retailer 6£311 GBP
Retailer 5£340 GBP
Retailer 2£390 GBP
Retailer 7£530 GBP
MOH London£712 GBP

35 data points across 7 retailers

7 retailers£267 GBP to £712 GBP

A
Cheapest Retailer
-
£267 GBP
B+
Retailer 2
-
£273 GBP
View
A
Retailer 3
-
£311 GBP
View
B+
Retailer 4
-
£340 GBP
View
B+
Retailer 5
-
£390 GBP
View
B
Retailer 6
-
£530 GBP
View
Most Expensive
B
MOH London
LG797676963 · Nov 2
£712 GBP
View
6 more retailers have this diamond
Prices start from £267 GBPSave up to £446 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
1.30ct Round
£267 GBP