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Round|Lab Grown|IGI

0.78ct I VS1 Round Lab Grown Diamond

VG • I/VS1 • IGI LG843626337

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843626337

Diamond specifications and retailer prices

From £146 GBP
$195 USD
As of October 28, 2026
Save £763 GBP (84%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £910 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct lab-grown round diamond

This 0.78ct lab-grown round sits in the just-under-one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG843626337 or 843626337. Listed at 4 retailers as of October 28, 2026, with prices from £146 to £910, a £763 spread on the same certified stone. MOH London lists it at £910. 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
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843626337
Dimensions5.90 × 5.84 × 3.56 mm
L/W Ratio1.01
Girdle conditionFaceted
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 Light Blue
Top View
5.90 mm5.84 mm0.78 ctI / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG843626337
Side View
Table 61.0%Crown 35.2°Girdle: MED-THKPavilion 40.1°CuletDepth 60.6%

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 28
Current: £910 GBP|Low: £146 GBP|High: £910 GBP|Avg: £409 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 4£146 GBP
Retailer 2£199 GBP
Retailer 3£391 GBP
MOH London£910 GBP

6 data points across 4 retailers

4 retailers£146 GBP to £910 GBP

B+
Cheapest Retailer
-
£146 GBP
$195 USD
A
Retailer 2
-
£199 GBP
€252 EUR
View
B+
Retailer 3
-
£391 GBP
$521 USD
View
Most Expensive
B
MOH London
LG843626337 · Oct 29
£910 GBP
View
3 more retailers have this diamond
Prices start from £146 GBPSave up to £763 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 Round
£146 GBP