Heart|Lab Grown|IGI

1.00ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG818663207

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818663207

Diamond specifications and retailer prices

From £181 GBP
$242 USD
As of October 30, 2026
Save £752 GBP (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £932 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663207 or 818663207. Listed at 17 retailers as of October 30, 2026, with prices from £181 to £932, a £752 spread on the same certified stone. Reve Diamonds lists it at £932. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663207
Dimensions6.91 × 6.21 × 3.92 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
6.91 mm6.21 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663207
Side View
Table 59.0%Crown 36.6°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 56.7%

Caratlytics Score

How it works →
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: £373 GBP|Low: £134 GBP|High: £968 GBP|Avg: £502 GBP|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 31, 2026
Retailer 10£181 GBP
Retailer 5£284 GBP
Retailer 6£346 GBP
Retailer 1£373 GBP
Retailer 7£416 GBP
Retailer 9£434 GBP
Retailer 8£492 GBP
Retailer 3£519 GBP
Retailer 2£686 GBP
Retailer 4£810 GBP
Reve Diamonds£932 GBP

33 data points across 11 retailers

17 retailers£181 GBP to £932 GBP

Retailer 1
-
£164 GBP
$220 USD
Price last confirmed 23 days ago
A
Retailer 2
-
£181 GBP
$242 USD
View
Final sale: no returns
Retailer 3
-
£190 GBP
$255 USD
View
Price last confirmed 32 days ago
Retailer 4
-
£204 GBP
$273 USD
View
Price last confirmed 28 days ago
Retailer 5
-
£204 GBP
$273 USD
View
Price last confirmed 19 days ago
Retailer 6
-
£207 GBP
$277 USD
View
Price last confirmed 36 days ago
A
Retailer 7
-
£284 GBP
$380 USD
View
A
Retailer 8
-
£346 GBP
ZAR 7,482 ZAR
View
A
Retailer 9
-
£373 GBP
View
B+
Retailer 10
-
£416 GBP
$557 USD
View
B+
Retailer 11
-
£434 GBP
$581 USD
View
B+
Retailer 12
-
£492 GBP
A$1,014 AUD
View
B+
Retailer 13
-
£519 GBP
$695 USD
View
Retailer 14
-
£655 GBP
$877 USD
View
Price last confirmed 30 days ago
B
Retailer 15
-
£686 GBP
$920 USD
View
B
Retailer 16
-
£810 GBP
View
Most Expensive
B
Reve Diamonds
4F0886E3F · Oct 30
£932 GBP
$1,249 USD
View
16 more retailers have this diamond
Prices start from £181 GBPSave up to £752 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
£181 GBP