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Heart|Lab Grown|IGI

1.00ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG836642970

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836642970

Diamond specifications and retailer prices

From $152 USD
As of October 27, 2026
Save $888 USD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,040 USD at Reve Diamonds · As of October 28, 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 LG836642970 or 836642970. Listed at 16 retailers as of October 27, 2026, with prices from $152 to $1,040, a $888 spread on the same certified stone. Reve Diamonds lists it at $1,040. 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 angle32°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836642970
Dimensions6.93 × 5.97 × 4.16 mm
L/W Ratio1.16
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
6.93 mm5.97 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836642970
Side View
Table 54.0%Crown 32°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 60.0%

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 27
Current: $327 USD|Low: $146 USD|High: $1,040 USD|Avg: $480 USD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
October 29, 2026
Retailer 10$152 USD
Retailer 12$187 USD
Retailer 5$193 USD
Retailer 4$289 USD
Retailer 1$327 USD
Retailer 3$346 USD
Retailer 8$358 USD
Retailer 9$494 USD
Retailer 11$570 USD
Retailer 2$606 USD
Retailer 6$675 USD
Retailer 7$886 USD
Reve Diamonds$1,040 USD

40 data points across 13 retailers

16 retailers$152 USD to $1,040 USD

A
Cheapest Retailer
-
$152 USD
A
Retailer 2
-
$176 USD
View
Price last confirmed 30 days ago
A
Retailer 3
-
$186 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$187 USD
View
Final sale: no returns
A
Retailer 5
-
$189 USD
View
A
Retailer 6
-
$193 USD
View
A
Retailer 7
-
$289 USD
View
B+
Retailer 8
-
$327 USD
£258 GBP
View
B+
Retailer 9
-
$346 USD
View
B+
Retailer 10
-
$358 USD
£282 GBP
View
B+
Retailer 11
-
$494 USD
View
B
Retailer 12
-
$570 USD
View
B
Retailer 13
-
$606 USD
View
B
Retailer 14
-
$675 USD
View
B
Retailer 15
-
$886 USD
£698 GBP
View
Most Expensive
B
Reve Diamonds
F0CE878DF · Oct 28
$1,040 USD
View
15 more retailers have this diamond
Prices start from $152 USDSave up to $888 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.

A
1.00ct Heart
$152 USD