CaratHunter
Plans
Oval|Lab Grown|IGI

0.78ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG735515017

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG735515017

Diamond specifications and retailer prices

From £125 GBP
HK$1,300 HKD
As of October 29, 2026
Save £732 GBP (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £857 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct lab-grown oval diamond

This 0.78ct lab-grown oval sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG735515017 or 735515017. Listed at 6 retailers as of October 29, 2026, with prices from £125 to £857, a £732 spread on the same certified stone. MOH London lists it at £857. 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

0.78
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735515017
Dimensions7.49 × 5.18 × 3.17 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.49 mm5.18 mm0.78 ctE / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735515017
Side View
Table 62.0%Crown 33.3°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £857 GBP|Low: £125 GBP|High: £857 GBP|Avg: £251 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 6£125 GBP
Retailer 4£161 GBP
Retailer 5£204 GBP
Retailer 2£204 GBP
Retailer 7£222 GBP
Retailer 8£241 GBP
Retailer 9£272 GBP
Retailer 3£282 GBP
MOH London£857 GBP

2 data points across 9 retailers

6 retailers£125 GBP to £857 GBP

A
Cheapest Retailer
-
£125 GBP
HK$1,300 HKD
A
Retailer 2
-
£204 GBP
$271 USD
View
A
Retailer 3
-
£204 GBP
View
A
Retailer 4
-
£222 GBP
View
B+
Retailer 5
-
£282 GBP
$376 USD
View
Most Expensive
B
MOH London
LG735515017 · Oct 29
£857 GBP
View
5 more retailers have this diamond
Prices start from £125 GBPSave up to £732 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
0.78ct Oval
£125 GBP