CaratHunter
Plans
Heart|Lab Grown|IGI

1.25ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG654401303

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG654401303

Diamond specifications and retailer prices

From £164 GBP
As of November 4, 2026
Save £770 GBP (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £934 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG654401303 or 654401303. Listed at 19 retailers as of November 4, 2026, with prices from £164 to £934, a £770 spread on the same certified stone. Reve Diamonds lists it at £934. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654401303
Dimensions6.57 × 7.42 × 4.53 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.57 mm7.42 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654401303
Side View
Table 56.0%Crown 34.6°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.1%

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: Nov 4
Current: £374 GBP|Low: £164 GBP|High: £944 GBP|Avg: £458 GBP|+16.4%
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
Retailer 17
Retailer 18
Reve Diamonds
November 5, 2026
Retailer 13£164 GBP
Retailer 15£182 GBP
Retailer 2£190 GBP
Retailer 5£207 GBP
Retailer 6£207 GBP
Retailer 12£270 GBP
Retailer 18£347 GBP
Retailer 4£357 GBP
Retailer 8£370 GBP
Retailer 1£374 GBP
Retailer 7£442 GBP
Retailer 3£506 GBP
Retailer 9£593 GBP
Retailer 14£653 GBP
Retailer 17£656 GBP
Retailer 16£692 GBP
Retailer 10£704 GBP
Retailer 11£812 GBP
Reve Diamonds£934 GBP

37 data points across 19 retailers

19 retailers£164 GBP to £934 GBP

A
Cheapest Retailer
-
£164 GBP
A
Retailer 2
-
£182 GBP
View
Final sale: no returns
A
Retailer 3
-
£190 GBP
View
A
Retailer 4
-
£207 GBP
View
Retailer 5
-
£207 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£270 GBP
View
B+
Retailer 7
-
£347 GBP
View
B+
Retailer 8
-
£357 GBP
View
B+
Retailer 9
-
£370 GBP
View
B+
Retailer 10
-
£374 GBP
View
B+
Retailer 11
-
£442 GBP
View
B+
Retailer 12
-
£506 GBP
View
B
Retailer 13
-
£593 GBP
View
B
Retailer 14
-
£653 GBP
View
B
Retailer 15
-
£656 GBP
View
B
Retailer 16
-
£692 GBP
View
Retailer 17
-
£704 GBP
View
Price last confirmed 26 days ago
B
Retailer 18
-
£812 GBP
View
Most Expensive
B
Reve Diamonds
EF2CF2BD8 · Nov 4
£934 GBP
$1,261 USD
View
18 more retailers have this diamond
Prices start from £164 GBPSave up to £770 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
£164 GBP