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Heart|Lab Grown|IGI

1.55ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG836620576

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836620576

Diamond specifications and retailer prices

From $636 USD
As of October 27, 2026
Save $3,304 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,940 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620576 or 836620576. Listed at 18 retailers as of October 27, 2026, with prices from $636 to $3,940, a $3,304 spread on the same certified stone. Brilliant Earth lists it at $3,940. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620576
Dimensions7.97 × 7.15 × 4.48 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
7.97 mm7.15 mm1.55 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620576
Side View
Table 64.0%Crown 39.7°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 56.2%

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: $3,940 USD|Low: $636 USD|High: $3,940 USD|Avg: $1,844 USD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
October 29, 2026
Retailer 5$636 USD
Retailer 16$692 USD
Retailer 7$738 USD
Retailer 8$738 USD
Retailer 12$817 USD
Retailer 15$915 USD
Retailer 2$1,175 USD
Retailer 4$1,179 USD
Retailer 6$1,206 USD
Retailer 11$1,356 USD
Retailer 18$1,717 USD
Retailer 9$2,075 USD
Retailer 3$2,425 USD
Retailer 10$2,548 USD
Retailer 14$2,943 USD
Retailer 13$3,122 USD
Retailer 17$3,127 USD
Brilliant Earth$3,940 USD

38 data points across 18 retailers

18 retailers$636 USD to $3,940 USD

A
Cheapest Retailer
-
$636 USD
A
Retailer 2
-
$692 USD
View
A
Retailer 3
-
$738 USD
View
A
Retailer 4
-
$738 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$817 USD
View
Final sale: no returns
A
Retailer 6
-
$915 USD
View
A
Retailer 7
-
$1,175 USD
£925 GBP
View
A
Retailer 8
-
$1,179 USD
View
A
Retailer 9
-
$1,206 USD
View
B+
Retailer 10
-
$1,356 USD
ZAR 21,910 ZAR
View
B+
Retailer 11
-
$1,717 USD
View
B+
Retailer 12
-
$2,075 USD
View
B+
Retailer 13
-
$2,425 USD
View
B
Retailer 14
-
$2,548 USD
View
B
Retailer 15
-
$2,943 USD
SGD 3,977 SGD
View
B
Retailer 16
-
$3,122 USD
View
B
Retailer 17
-
$3,127 USD
£2,462 GBP
View
Most Expensive
B
Brilliant Earth
21433409A · Oct 28
$3,940 USD
View
17 more retailers have this diamond
Prices start from $636 USDSave up to $3,304 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
1.55ct Heart
$636 USD