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Heart|Lab Grown|IGI

1.25ct F VS1 Heart Lab Grown Diamond

VG • F/VS1 • IGI LG844628222

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG844628222

Diamond specifications and retailer prices

From £163 GBP
As of November 4, 2026
Save £698 GBP (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £860 GBP at Reve Diamonds · As of November 4, 2026
View at Reve 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG844628222 or 844628222. Listed at 13 retailers as of November 4, 2026, with prices from £163 to £860, a £698 spread on the same certified stone. Reve Diamonds lists it at £860. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.25
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844628222
Dimensions6.55 × 7.50 × 4.41 mm
L/W Ratio1.15
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
6.55 mm7.50 mm1.25 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844628222
Side View
Table 54.0%Crown 36.6°Girdle: MED-STKPavilion 38.3°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: Nov 4
Current: £207 GBP|Low: £163 GBP|High: £868 GBP|Avg: £473 GBP|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 5, 2026
Retailer 9£163 GBP
Retailer 2£181 GBP
Retailer 1£207 GBP
Retailer 10£300 GBP
Retailer 3£305 GBP
Retailer 5£312 GBP
Retailer 11£343 GBP
Retailer 8£424 GBP
Retailer 7£455 GBP
Retailer 4£599 GBP
Retailer 12£698 GBP
Retailer 6£811 GBP
Reve Diamonds£860 GBP

19 data points across 13 retailers

13 retailers£163 GBP to £860 GBP

A
Cheapest Retailer
-
£163 GBP
A
Retailer 2
-
£181 GBP
View
Final sale: no returns
A
Retailer 3
-
£207 GBP
View
A
Retailer 4
-
£300 GBP
View
A
Retailer 5
-
£305 GBP
View
A
Retailer 6
-
£312 GBP
View
A
Retailer 7
-
£343 GBP
View
B+
Retailer 8
-
£424 GBP
View
B+
Retailer 9
-
£455 GBP
View
B
Retailer 10
-
£599 GBP
View
B
Retailer 11
-
£698 GBP
View
B
Retailer 12
-
£811 GBP
View
Most Expensive
B
Reve Diamonds
A49BB4863 · Nov 4
£860 GBP
$1,158 USD
View
12 more retailers have this diamond
Prices start from £163 GBPSave up to £698 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
£163 GBP