CaratHunter
Plans
Heart|Lab Grown|IGI

1.00ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG842626538

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG842626538

Diamond specifications and retailer prices

From £252 GBP
As of November 4, 2026
Save £1,001 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,253 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG842626538 or 842626538. Listed at 16 retailers as of November 1, 2026, with prices from £252 to £1,253, a £1,001 spread on the same certified stone. MOH London lists it at £1,253. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842626538
Dimensions6.48 × 7.02 × 3.91 mm
L/W Ratio1.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.48 mm7.02 mm1.00 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842626538
Side View
Table 64.0%Crown 31.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 55.7%

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: £1,253 GBP|Low: £252 GBP|High: £1,260 GBP|Avg: £608 GBP|-0.5%
MOH London
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
November 4, 2026
Retailer 9£252 GBP
Retailer 5£282 GBP
Retailer 13£293 GBP
Retailer 15£313 GBP
Retailer 2£321 GBP
Retailer 6£421 GBP
Retailer 14£426 GBP
Retailer 3£436 GBP
Retailer 16£539 GBP
Retailer 7£542 GBP
Retailer 12£556 GBP
Retailer 10£769 GBP
Retailer 4£917 GBP
Retailer 11£1,005 GBP
Retailer 8£1,037 GBP
MOH London£1,253 GBP

17 data points across 16 retailers

16 retailers£252 GBP to £1,253 GBP

A
Cheapest Retailer
-
£252 GBP
A
Retailer 2
-
£282 GBP
View
Final sale: no returns
A
Retailer 3
-
£293 GBP
View
A
Retailer 4
-
£313 GBP
View
A
Retailer 5
-
£321 GBP
View
B+
Retailer 6
-
£421 GBP
View
B+
Retailer 7
-
£426 GBP
View
B+
Retailer 8
-
£436 GBP
View
B+
Retailer 9
-
£539 GBP
View
B+
Retailer 10
-
£542 GBP
View
B+
Retailer 11
-
£556 GBP
View
B
Retailer 12
-
£769 GBP
View
B
Retailer 13
-
£917 GBP
View
B
Retailer 14
-
£1,005 GBP
View
B
Retailer 15
-
£1,037 GBP
View
Most Expensive
B
MOH London
LG842626538 · Nov 1
£1,253 GBP
View
15 more retailers have this diamond
Prices start from £252 GBPSave up to £1,001 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
1.00ct Heart
£252 GBP