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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 €217 EUR
$242 USD
As of October 30, 2026
Save €902 EUR (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,118 EUR 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 €217 to €1,118, a €902 spread on the same certified stone. Reve Diamonds lists it at €1,118. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €448 EUR|Low: €160 EUR|High: €1,161 EUR|Avg: €603 EUR|-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€217 EUR
Retailer 5€340 EUR
Retailer 6€415 EUR
Retailer 1€448 EUR
Retailer 7€499 EUR
Retailer 9€520 EUR
Retailer 8€590 EUR
Retailer 3€622 EUR
Retailer 2€823 EUR
Retailer 4€972 EUR
Reve Diamonds€1,118 EUR

32 data points across 11 retailers

17 retailers€217 EUR to €1,118 EUR

Retailer 1
-
€197 EUR
$220 USD
Price last confirmed 23 days ago
A
Retailer 2
-
€217 EUR
$242 USD
View
Final sale: no returns
Retailer 3
-
€228 EUR
$255 USD
View
Price last confirmed 33 days ago
Retailer 4
-
€244 EUR
$273 USD
View
Price last confirmed 28 days ago
Retailer 5
-
€244 EUR
$273 USD
View
Price last confirmed 19 days ago
Retailer 6
-
€248 EUR
$277 USD
View
Price last confirmed 36 days ago
A
Retailer 7
-
€340 EUR
$380 USD
View
A
Retailer 8
-
€415 EUR
ZAR 7,482 ZAR
View
A
Retailer 9
-
€448 EUR
£394 GBP
View
B+
Retailer 10
-
€499 EUR
$557 USD
View
B+
Retailer 11
-
€520 EUR
$581 USD
View
B+
Retailer 12
-
€590 EUR
A$1,014 AUD
View
B+
Retailer 13
-
€622 EUR
$695 USD
View
Retailer 14
-
€785 EUR
$877 USD
View
Price last confirmed 31 days ago
B
Retailer 15
-
€823 EUR
$920 USD
View
B
Retailer 16
-
€972 EUR
£855 GBP
View
Most Expensive
B
Reve Diamonds
4F0886E3F · Oct 30
€1,118 EUR
$1,249 USD
View
16 more retailers have this diamond
Prices start from €217 EURSave up to €902 EUR

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
€217 EUR