Heart|Lab Grown|IGI

1.00ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG810620711

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG810620711

Diamond specifications and retailer prices

From €412 EUR
A$708 AUD
As of October 31, 2026
12 retailers carry this diamond
Most expensive: €931 EUR at Reve Diamonds · As of October 9, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG810620711 or 810620711. Listed at 12 retailers as of October 31, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810620711
Dimensions6.88 × 6.14 × 4.09 mm
L/W Ratio1.12
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
6.88 mm6.14 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810620711
Side View
Table 59.0%Crown 36.8°Girdle: MED-THKPavilion 41.5°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €412 EUR|Low: €107 EUR|High: €931 EUR|Avg: €452 EUR|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 19, 2026
Retailer 3€151 EUR
Retailer 2€259 EUR
Retailer 4€286 EUR
Retailer 7€310 EUR
Retailer 9€331 EUR
Retailer 8€398 EUR
Retailer 1€412 EUR
Retailer 6€501 EUR
Retailer 10€592 EUR
Retailer 5€796 EUR
Reve Diamonds€931 EUR

23 data points across 11 retailers

12 retailers

Retailer 1
-
€136 EUR
$152 USD
Price last confirmed 23 days ago
Retailer 2
-
€158 EUR
$176 USD
View
Price last confirmed 33 days ago
Retailer 3
-
€169 EUR
$189 USD
View
Price last confirmed 28 days ago
Retailer 4
-
€169 EUR
$189 USD
View
Price last confirmed 24 days ago
Retailer 5
-
€331 EUR
£291 GBP
View
Price last confirmed 23 days ago
Retailer 6
-
€398 EUR
$445 USD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
€412 EUR
A$708 AUD
View
Retailer 8
-
€501 EUR
$560 USD
View
Price last confirmed 23 days ago
Retailer 9
-
€542 EUR
$606 USD
View
Price last confirmed 31 days ago
Retailer 10
-
€592 EUR
$661 USD
View
Price last confirmed 23 days ago
Retailer 11
-
€796 EUR
£700 GBP
View
Price last confirmed 24 days ago
Most Expensive
Reve Diamonds
C9B28A90F · Oct 9
€931 EUR
$1,040 USD
View
Price last confirmed 22 days ago
11 more retailers have this diamond
Prices start from €412 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.

B+
1.00ct Heart
€412 EUR