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Oval|Lab Grown|IGI

0.78ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG598379013

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG598379013

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: £1,863 GBP at Allurez · As of October 26, 2026
View at Allurez

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 very-good cut grade and certified by IGI LG598379013 or 598379013. Listed at 6 retailers as of October 29, 2026, with a 586% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.78
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598379013
Dimensions7.35 × 5.19 × 3.28 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.35 mm5.19 mm0.78 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598379013
Side View
Table 59.0%Crown 37.5°Girdle: MED-THKPavilion 40.9°Culet: NoneDepth 63.2%

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: Oct 29
Current: £1,863 GBP|Low: £125 GBP|High: £1,863 GBP|Avg: £421 GBP
Allurez
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7£125 GBP
Retailer 10£190 GBP
Retailer 6£204 GBP
Retailer 2£204 GBP
Retailer 8£222 GBP
Retailer 9£241 GBP
Retailer 3£272 GBP
Retailer 12£272 GBP
Retailer 4£301 GBP
Retailer 11£450 GBP
Retailer 5£857 GBP
Allurez£1,863 GBP

3 data points across 12 retailers

6 retailers£125 GBP to £857 GBP

A
Cheapest Retailer
-
£125 GBP
HK$1,300 HKD
B+
Retailer 2
-
£204 GBP
$271 USD
View
B+
Retailer 3
-
£204 GBP
View
B+
Retailer 4
-
£222 GBP
View
B
Retailer 5
-
£857 GBP
View
Most Expensive
Allurez
5863173 · Oct 26
£1,863 GBP
$2,481 USD
View
Price under review
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