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Heart|Lab Grown|IGI

1.00ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG836621580

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836621580

Diamond specifications and retailer prices

From $270 USD
As of October 27, 2026
Save $1,840 USD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,110 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836621580 or 836621580. Listed at 19 retailers as of October 27, 2026, with prices from $270 to $2,110, a $1,840 spread on the same certified stone. Brilliant Earth lists it at $2,110. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836621580
Dimensions6.21 × 6.77 × 4.04 mm
L/W Ratio1.09
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
6.21 mm6.77 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836621580
Side View
Table 61.0%Crown 39.8°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 59.7%

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 27
Current: $2,110 USD|Low: $306 USD|High: $2,190 USD|Avg: $901 USD|-3.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 3$306 USD
Retailer 8$355 USD
Retailer 11$495 USD
Retailer 2$546 USD
Retailer 5$555 USD
Retailer 9$574 USD
Retailer 4$576 USD
Retailer 10$584 USD
Retailer 12$850 USD
Retailer 6$993 USD
Retailer 14$1,125 USD
Retailer 13$1,328 USD
Retailer 7$1,346 USD
Brilliant Earth$2,110 USD

35 data points across 14 retailers

19 retailers$270 USD to $2,110 USD

A
Cheapest Retailer
-
$270 USD
A
Retailer 2
-
$306 USD
View
Final sale: no returns
A
Retailer 3
-
$313 USD
View
A
Retailer 4
-
$334 USD
View
A
Retailer 5
-
$334 USD
View
A
Retailer 6
-
$355 USD
£280 GBP
View
A
Retailer 7
-
$495 USD
View
A
Retailer 8
-
$546 USD
€520 EUR
View
A
Retailer 9
-
$555 USD
View
B+
Retailer 10
-
$574 USD
ZAR 9,278 ZAR
View
A
Retailer 11
-
$576 USD
View
B+
Retailer 12
-
$584 USD
£460 GBP
View
B+
Retailer 13
-
$850 USD
View
B+
Retailer 14
-
$993 USD
SGD 1,342 SGD
View
B+
Retailer 15
-
$1,074 USD
View
B+
Retailer 16
-
$1,125 USD
View
B
Retailer 17
-
$1,328 USD
View
B
Retailer 18
-
$1,346 USD
£1,060 GBP
View
Most Expensive
B
Brilliant Earth
21590127A · Oct 28
$2,110 USD
View
18 more retailers have this diamond
Prices start from $270 USDSave up to $1,840 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
$270 USD