CaratHunter
Plans
Heart|Lab Grown|IGI

1.01ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG816610587

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816610587

Diamond specifications and retailer prices

From £227 GBP
$302 USD
As of October 28, 2026
Save £1,373 GBP (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,599 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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816610587 or 816610587. Listed at 19 retailers as of October 28, 2026, with prices from £227 to £1,599, a £1,373 spread on the same certified stone. Brilliant Earth lists it at £1,599. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816610587
Dimensions6.75 × 6.19 × 3.95 mm
L/W Ratio1.09
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
6.75 mm6.19 mm1.01 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816610587
Side View
Table 56.0%Crown 35.5°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 58.5%

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: Oct 28
Current: £1,599 GBP|Low: £225 GBP|High: £1,607 GBP|Avg: £771 GBP|-0.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 3£227 GBP
Retailer 7£354 GBP
Retailer 6£416 GBP
Retailer 8£433 GBP
Retailer 11£440 GBP
Retailer 2£441 GBP
Retailer 10£469 GBP
Retailer 13£559 GBP
Retailer 12£848 GBP
Retailer 5£984 GBP
Retailer 4£1,011 GBP
Retailer 9£1,065 GBP
Brilliant Earth£1,599 GBP

34 data points across 13 retailers

19 retailers£227 GBP to £1,599 GBP

A
Cheapest Retailer
-
£227 GBP
$302 USD
Final sale: no returns
A
Retailer 2
-
£283 GBP
$377 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
£317 GBP
$422 USD
View
Price last confirmed 30 days ago
A
Retailer 4
-
£346 GBP
$461 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
£351 GBP
$467 USD
View
Price last confirmed 26 days ago
A
Retailer 6
-
£351 GBP
$467 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
£354 GBP
$472 USD
View
A
Retailer 8
-
£416 GBP
€528 EUR
View
B+
Retailer 9
-
£433 GBP
ZAR 9,312 ZAR
View
B+
Retailer 10
-
£440 GBP
$586 USD
View
B+
Retailer 11
-
£441 GBP
View
B+
Retailer 12
-
£469 GBP
$625 USD
View
B+
Retailer 13
-
£559 GBP
$744 USD
View
B
Retailer 14
-
£848 GBP
$1,129 USD
View
B
Retailer 15
-
£984 GBP
$1,311 USD
View
B
Retailer 16
-
£1,011 GBP
View
B
Retailer 17
-
£1,065 GBP
$1,419 USD
View
B
Retailer 18
-
£1,128 GBP
$1,502 USD
View
Price last confirmed 29 days ago
Most Expensive
B
Brilliant Earth
21018583A · Oct 28
£1,599 GBP
$2,130 USD
View
18 more retailers have this diamond
Prices start from £227 GBPSave up to £1,373 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
£227 GBP