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Heart|Lab Grown|IGI

1.01ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG819633794

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG819633794

Diamond specifications and retailer prices

From £196 GBP
As of October 29, 2026
Save £1,053 GBP (84%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,249 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.01ct lab-grown heart diamond

This 1.01ct 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 LG819633794 or 819633794. Listed at 7 retailers as of October 28, 2026, with prices from £196 to £1,249, a £1,053 spread on the same certified stone. Brilliant Earth lists it at £1,249. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819633794
Dimensions6.82 × 6.13 × 4.32 mm
L/W Ratio1.11
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
6.82 mm6.13 mm1.01 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819633794
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A+
Exceptional
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 29
Current: £1,249 GBP|Low: £194 GBP|High: £1,325 GBP|Avg: £574 GBP|-5.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 3£196 GBP
Retailer 5£329 GBP
Retailer 4£367 GBP
Retailer 6£463 GBP
Retailer 7£492 GBP
Retailer 2£891 GBP
Brilliant Earth£1,249 GBP

38 data points across 7 retailers

7 retailers£196 GBP to £1,249 GBP

A+
Cheapest Retailer
-
£196 GBP
A
Retailer 2
-
£329 GBP
$437 USD
View
A
Retailer 3
-
£367 GBP
$488 USD
View
B+
Retailer 4
-
£463 GBP
A$947 AUD
View
B+
Retailer 5
-
£492 GBP
$654 USD
View
B
Retailer 6
-
£891 GBP
View
Most Expensive
B
Brilliant Earth
20880602A · Oct 28
£1,249 GBP
$1,660 USD
View
6 more retailers have this diamond
Prices start from £196 GBPSave up to £1,053 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+
1.01ct Heart
£196 GBP