Heart|Lab Grown|IGI

1.25ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG838662253

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG838662253

Diamond specifications and retailer prices

From £159 GBP
$213 USD
As of October 30, 2026
Save £86 GBP (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £627 GBP at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838662253 or 838662253. Listed at 3 retailers as of October 30, 2026, with a 54% 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838662253
Dimensions6.67 × 7.29 × 4.45 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.67 mm7.29 mm1.25 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838662253
Side View
Table 58.0%Crown 35.3°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £627 GBP|Low: £157 GBP|High: £627 GBP|Avg: £367 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 27, 2026
Retailer 2£159 GBP
Retailer 3£245 GBP
Retailer 4£346 GBP
Brilliant Earth£627 GBP

9 data points across 4 retailers

3 retailers£159 GBP to £245 GBP

A
Cheapest Retailer
-
£159 GBP
$213 USD
Final sale: no returns
B+
Retailer 2
-
£245 GBP
$328 USD
View
Most Expensive
Brilliant Earth
21608409A · Oct 1
£627 GBP
$840 USD
View
Price last confirmed 29 days ago
2 more retailers have this diamond
Prices start from £159 GBPSave up to £86 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
£159 GBP