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 $460 USD
A$708 AUD
As of October 31, 2026
12 retailers carry this diamond
Most expensive: $1,040 USD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $460 USD|Low: $120 USD|High: $1,040 USD|Avg: $505 USD|-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$169 USD
Retailer 2$289 USD
Retailer 4$320 USD
Retailer 7$346 USD
Retailer 9$370 USD
Retailer 8$445 USD
Retailer 1$460 USD
Retailer 6$560 USD
Retailer 10$661 USD
Retailer 5$889 USD
Reve Diamonds$1,040 USD

23 data points across 11 retailers

12 retailers

Retailer 1
-
$152 USD
Price last confirmed 23 days ago
Retailer 2
-
$176 USD
View
Price last confirmed 33 days ago
Retailer 3
-
$189 USD
View
Price last confirmed 29 days ago
Retailer 4
-
$189 USD
View
Price last confirmed 24 days ago
Retailer 5
-
$370 USD
£291 GBP
View
Price last confirmed 23 days ago
Retailer 6
-
$445 USD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
$460 USD
A$708 AUD
View
Retailer 8
-
$560 USD
View
Price last confirmed 23 days ago
Retailer 9
-
$606 USD
View
Price last confirmed 31 days ago
Retailer 10
-
$661 USD
View
Price last confirmed 24 days ago
Retailer 11
-
$889 USD
£700 GBP
View
Price last confirmed 24 days ago
Most Expensive
Reve Diamonds
C9B28A90F · Oct 9
$1,040 USD
View
Price last confirmed 23 days ago
11 more retailers have this diamond
Prices start from $460 USD

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
$460 USD