Heart|Lab Grown|IGI

1.20ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG813647346

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG813647346

Diamond specifications and retailer prices

From £268 GBP
$359 USD
As of October 30, 2026
Save £1,277 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,545 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown heart diamond

This 1.2ct 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 LG813647346 or 813647346. Listed at 11 retailers as of October 29, 2026, with prices from £268 to £1,545, a £1,277 spread on the same certified stone. Do Amore Diamonds lists it at £1,545. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813647346
Dimensions7.22 × 6.54 × 4.25 mm
L/W Ratio1.10
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
Top View
7.22 mm6.54 mm1.20 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813647346
Side View
Table 57.0%Crown 38°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 58.9%

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 30
Current: £1,545 GBP|Low: £240 GBP|High: £1,582 GBP|Avg: £549 GBP|-2.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 10£240 GBP
Retailer 12£268 GBP
Retailer 8£328 GBP
Retailer 5£339 GBP
Retailer 2£355 GBP
Retailer 4£437 GBP
Retailer 13£450 GBP
Retailer 11£457 GBP
Retailer 7£538 GBP
Retailer 9£644 GBP
Retailer 3£758 GBP
Retailer 6£888 GBP
Do Amore Diamonds£1,545 GBP

26 data points across 13 retailers

11 retailers£268 GBP to £1,545 GBP

Retailer 1
-
£240 GBP
$322 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
£268 GBP
$359 USD
View
Retailer 3
-
£328 GBP
$440 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£355 GBP
€453 EUR
View
B+
Retailer 5
-
£450 GBP
A$928 AUD
View
B+
Retailer 6
-
£457 GBP
$612 USD
View
B+
Retailer 7
-
£538 GBP
A$1,108 AUD
View
B
Retailer 8
-
£644 GBP
$863 USD
View
Retailer 9
-
£758 GBP
A$1,562 AUD
View
Price last confirmed 28 days ago
B
Retailer 10
-
£888 GBP
View
Most Expensive
B
Do Amore Diamonds
27-BCB342677 · Oct 29
£1,545 GBP
$2,070 USD
View
10 more retailers have this diamond
Prices start from £268 GBPSave up to £1,277 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
1.20ct Heart
£268 GBP