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Heart|Lab Grown|IGI

1.25ct E VVS1 Heart Lab Grown Diamond

EX • E/VVS1 • IGI LG618403178

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG618403178

Diamond specifications and retailer prices

From £278 GBP
$372 USD
As of October 30, 2026
Save £585 GBP (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,605 GBP at Do Amore Diamonds · As of October 23, 2026
View at Do Amore Diamonds

About this 1.25ct lab-grown heart diamond

This 1.25ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG618403178 or 618403178. Listed at 18 retailers as of October 30, 2026, with a 211% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618403178
Dimensions6.68 × 7.48 × 4.40 mm
L/W Ratio1.12
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
6.68 mm7.48 mm1.25 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618403178
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 58.8%

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: £1,605 GBP|Low: £161 GBP|High: £1,627 GBP|Avg: £552 GBP|-1.4%
Do Amore Diamonds
Retailer 2
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Retailer 19
October 29, 2026
Retailer 6£167 GBP
Retailer 17£186 GBP
Retailer 10£195 GBP
Retailer 3£207 GBP
Retailer 11£209 GBP
Retailer 15£278 GBP
Retailer 4£280 GBP
Retailer 13£354 GBP
Retailer 14£386 GBP
Retailer 5£421 GBP
Retailer 12£479 GBP
Retailer 7£567 GBP
Retailer 9£673 GBP
Retailer 19£734 GBP
Retailer 2£779 GBP
Retailer 18£862 GBP
Retailer 8£928 GBP
Retailer 16£947 GBP
Do Amore Diamonds£1,605 GBP

40 data points across 19 retailers

18 retailers£278 GBP to £862 GBP

Retailer 1
-
£167 GBP
$224 USD
Price last confirmed 9 days ago
Retailer 2
-
£195 GBP
$261 USD
View
Price last confirmed 10 days ago
Retailer 3
-
£207 GBP
$277 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£209 GBP
$280 USD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
£278 GBP
$372 USD
View
Retailer 6
-
£280 GBP
View
Price last confirmed 9 days ago
A
Retailer 7
-
£354 GBP
$474 USD
View
Retailer 8
-
£386 GBP
ZAR 8,365 ZAR
View
Price last confirmed 8 days ago
Retailer 9
-
£421 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£479 GBP
A$988 AUD
View
Retailer 11
-
£567 GBP
A$1,168 AUD
View
Price last confirmed 13 days ago
Retailer 12
-
£673 GBP
$902 USD
View
Price last confirmed 9 days ago
Retailer 13
-
£734 GBP
$984 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
£779 GBP
A$1,606 AUD
View
B
Retailer 15
-
£862 GBP
$1,155 USD
View
Retailer 16
-
£928 GBP
View
Price last confirmed 10 days ago
Retailer 17
-
£947 GBP
$1,269 USD
View
Price last confirmed 8 days ago
Most Expensive
Do Amore Diamonds
27-BA00864EB · Oct 23
£1,605 GBP
$2,150 USD
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from £278 GBPSave up to £585 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
1.25ct Heart
£278 GBP