Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

EX • E/VVS1 • IGI LG823652326

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG823652326

Diamond specifications and retailer prices

From £178 GBP
$238 USD
As of October 30, 2026
Save £620 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £797 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG823652326 or 823652326. Listed at 12 retailers as of October 29, 2026, with prices from £178 to £797, a £620 spread on the same certified stone. MOH London lists it at £797. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823652326
Dimensions6.83 × 7.30 × 4.36 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.83 mm7.30 mm1.23 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823652326
Side View
Table 62.0%Crown 35.5°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 59.7%

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 30
Current: £797 GBP|Low: £178 GBP|High: £830 GBP|Avg: £485 GBP|-4.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 11£178 GBP
Retailer 6£267 GBP
Retailer 12£341 GBP
Retailer 2£361 GBP
Retailer 10£372 GBP
Retailer 8£429 GBP
Retailer 3£486 GBP
Retailer 5£638 GBP
Retailer 9£675 GBP
Retailer 7£678 GBP
Retailer 4£747 GBP
MOH London£797 GBP

35 data points across 12 retailers

12 retailers£178 GBP to £797 GBP

A
Cheapest Retailer
-
£178 GBP
$238 USD
Final sale: no returns
B+
Retailer 2
-
£267 GBP
$358 USD
View
A
Retailer 3
-
£341 GBP
ZAR 7,386 ZAR
View
A
Retailer 4
-
£361 GBP
View
B+
Retailer 5
-
£372 GBP
€475 EUR
View
B+
Retailer 6
-
£429 GBP
$575 USD
View
B+
Retailer 7
-
£486 GBP
A$1,001 AUD
View
B
Retailer 8
-
£638 GBP
$855 USD
View
B
Retailer 9
-
£675 GBP
$905 USD
View
B
Retailer 10
-
£678 GBP
$908 USD
View
B
Retailer 11
-
£747 GBP
A$1,540 AUD
View
Most Expensive
B
MOH London
LG823652326 · Oct 29
£797 GBP
View
11 more retailers have this diamond
Prices start from £178 GBPSave up to £620 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
1.23ct Heart
£178 GBP