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Heart|Lab Grown|IGI

1.01ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG669427027

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG669427027

Diamond specifications and retailer prices

From £184 GBP
$246 USD
As of October 30, 2026
Save £868 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,239 GBP at Brilliant Earth · As of October 15, 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 LG669427027 or 669427027. Listed at 21 retailers as of October 30, 2026, with a 473% 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

1.01
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669427027
Dimensions6.15 × 6.80 × 4.09 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
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
6.15 mm6.80 mm1.01 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669427027
Side View
Table 60.0%Crown 37.7°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.1%

Caratlytics Score

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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: Oct 30
Current: £1,239 GBP|Low: £175 GBP|High: £1,239 GBP|Avg: £540 GBP
Brilliant Earth
Retailer 2
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Retailer 19
November 1, 2026
Retailer 3£184 GBP
Retailer 13£211 GBP
Retailer 11£213 GBP
Retailer 6£228 GBP
Retailer 9£228 GBP
Retailer 7£383 GBP
Retailer 12£388 GBP
Retailer 17£391 GBP
Retailer 5£399 GBP
Retailer 19£422 GBP
Retailer 2£432 GBP
Retailer 14£450 GBP
Retailer 4£731 GBP
Retailer 18£734 GBP
Retailer 10£770 GBP
Retailer 16£917 GBP
Retailer 8£1,000 GBP
Retailer 15£1,051 GBP
Brilliant Earth£1,239 GBP

39 data points across 19 retailers

21 retailers£184 GBP to £1,051 GBP

A
Cheapest Retailer
-
£184 GBP
$246 USD
A
Retailer 2
-
£211 GBP
$283 USD
View
Final sale: no returns
A
Retailer 3
-
£213 GBP
$285 USD
View
A
Retailer 4
-
£228 GBP
$305 USD
View
A
Retailer 5
-
£228 GBP
$305 USD
View
A
Retailer 6
-
£383 GBP
$513 USD
View
A
Retailer 7
-
£388 GBP
€495 EUR
View
A
Retailer 8
-
£391 GBP
ZAR 8,463 ZAR
View
B+
Retailer 9
-
£399 GBP
$535 USD
View
B+
Retailer 10
-
£422 GBP
$565 USD
View
B+
Retailer 11
-
£432 GBP
View
B+
Retailer 12
-
£450 GBP
A$928 AUD
View
B+
Retailer 13
-
£603 GBP
$808 USD
View
B
Retailer 14
-
£731 GBP
$980 USD
View
Retailer 15
-
£734 GBP
$984 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
£770 GBP
$1,032 USD
View
B
Retailer 17
-
£834 GBP
$1,118 USD
View
B
Retailer 18
-
£917 GBP
View
B
Retailer 19
-
£1,000 GBP
$1,340 USD
View
B
Retailer 20
-
£1,051 GBP
A$2,167 AUD
View
Most Expensive
Brilliant Earth
15484047A · Oct 15
£1,239 GBP
$1,660 USD
View
Price last confirmed 16 days ago
20 more retailers have this diamond
Prices start from £184 GBPSave up to £868 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
£184 GBP