CaratHunter
Plans
Heart|Lab Grown|IGI

1.23ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG600368614

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG600368614

Diamond specifications and retailer prices

From £152 GBP
$204 USD
As of October 30, 2026
Save £1,440 GBP (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,592 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 LG600368614 or 600368614. Listed at 19 retailers as of October 27, 2026, with prices from £152 to £1,592, a £1,440 spread on the same certified stone. Queensmith lists it at £1,592. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600368614
Dimensions6.30 × 7.41 × 4.41 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
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
Top View
6.30 mm7.41 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600368614
Side View
Table 62.0%Crown 39.3°Girdle: MED-THKPavilion 39°Culet: NoneDepth 59.5%

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: £232 GBP|Low: £152 GBP|High: £894 GBP|Avg: £410 GBP|-11.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 7£152 GBP
Retailer 5£170 GBP
Retailer 3£177 GBP
Retailer 2£189 GBP
Retailer 15£189 GBP
Retailer 1£232 GBP
Retailer 12£320 GBP
Retailer 6£328 GBP
Retailer 9£348 GBP
Retailer 16£427 GBP
Retailer 11£462 GBP
Retailer 14£608 GBP
Retailer 13£610 GBP
Retailer 4£648 GBP
Retailer 8£799 GBP
Retailer 10£889 GBP

39 data points across 16 retailers

19 retailers£152 GBP to £1,592 GBP

A
Cheapest Retailer
-
£152 GBP
$204 USD
A
Retailer 2
-
£170 GBP
$228 USD
View
Final sale: no returns
A
Retailer 3
-
£177 GBP
$237 USD
View
A
Retailer 4
-
£189 GBP
$253 USD
View
A
Retailer 5
-
£189 GBP
$253 USD
View
Retailer 6
-
£212 GBP
$284 USD
View
Price last confirmed 36 days ago
A
Retailer 7
-
£232 GBP
View
Retailer 8
-
£320 GBP
ZAR 6,924 ZAR
View
Price last confirmed 8 days ago
A
Retailer 9
-
£328 GBP
$439 USD
View
A
Retailer 10
-
£348 GBP
View
B+
Retailer 11
-
£427 GBP
$572 USD
View
B+
Retailer 12
-
£462 GBP
A$953 AUD
View
B+
Retailer 13
-
£488 GBP
$654 USD
View
B+
Retailer 14
-
£608 GBP
$815 USD
View
Retailer 15
-
£610 GBP
$818 USD
View
Price last confirmed 11 days ago
B
Retailer 16
-
£648 GBP
$868 USD
View
B
Retailer 17
-
£799 GBP
$1,070 USD
View
B
Retailer 18
-
£889 GBP
View
Most Expensive
B
Queensmith
LG600368614 · Oct 27
£1,592 GBP
View
18 more retailers have this diamond
Prices start from £152 GBPSave up to £1,440 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
£152 GBP