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Heart|Lab Grown|IGI

1.55ct E FL Heart Lab Grown Diamond

VG • E/FL • IGI LG816615975

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816615975

Diamond specifications and retailer prices

From $905 AUD
$636 USD
As of October 30, 2026
Save $4,091 AUD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,997 AUD at Brilliant Earth · As of October 30, 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 very-good cut grade and certified by IGI LG816615975 or 816615975. Listed at 19 retailers as of October 30, 2026, with prices from $905 to $4,997, a $4,091 spread on the same certified stone. Brilliant Earth lists it at $4,997. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615975
Dimensions8.07 × 7.22 × 4.56 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
8.07 mm7.22 mm1.55 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615975
Side View
Table 57.0%Crown 35.5°Girdle: Slightly ThickPavilion 37°Culet: NoneDepth 56.5%

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 30
Current: $4,997 AUD|Low: $905 AUD|High: $5,609 AUD|Avg: $2,596 AUD|-10.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
Retailer 19
October 31, 2026
Retailer 6$905 AUD
Retailer 18$985 AUD
Retailer 8$1,051 AUD
Retailer 9$1,051 AUD
Retailer 15$1,163 AUD
Retailer 17$1,303 AUD
Retailer 4$1,401 AUD
Retailer 2$1,678 AUD
Retailer 5$1,678 AUD
Retailer 7$1,717 AUD
Retailer 12$1,931 AUD
Retailer 19$2,444 AUD
Retailer 10$2,954 AUD
Retailer 3$3,452 AUD
Retailer 11$3,627 AUD
Retailer 16$4,190 AUD
Retailer 13$4,433 AUD
Retailer 14$4,444 AUD
Brilliant Earth$4,997 AUD

38 data points across 19 retailers

19 retailers$905 AUD to $4,997 AUD

A
Cheapest Retailer
-
$905 AUD
$636 USD
A
Retailer 2
-
$985 AUD
$692 USD
View
A
Retailer 3
-
$1,051 AUD
$738 USD
View
Retailer 4
-
$1,051 AUD
$738 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$1,163 AUD
$817 USD
View
Final sale: no returns
A
Retailer 6
-
$1,303 AUD
$915 USD
View
A
Retailer 7
-
$1,401 AUD
$984 USD
View
B+
Retailer 8
-
$1,678 AUD
£928 GBP
View
B+
Retailer 9
-
$1,678 AUD
$1,179 USD
View
B+
Retailer 10
-
$1,717 AUD
$1,206 USD
View
B+
Retailer 11
-
$1,931 AUD
ZAR 21,910 ZAR
View
B+
Retailer 12
-
$2,444 AUD
$1,717 USD
View
B
Retailer 13
-
$2,954 AUD
$2,075 USD
View
B
Retailer 14
-
$3,452 AUD
$2,425 USD
View
B
Retailer 15
-
$3,627 AUD
$2,548 USD
View
B
Retailer 16
-
$4,190 AUD
SGD 3,977 SGD
View
B
Retailer 17
-
$4,433 AUD
£2,452 GBP
View
B
Retailer 18
-
$4,444 AUD
$3,122 USD
View
Most Expensive
B
Brilliant Earth
21421539A · Oct 30
$4,997 AUD
$3,510 USD
View
18 more retailers have this diamond
Prices start from $905 AUDSave up to $4,091 AUD

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
$905 AUD