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Heart|Lab Grown|IGI

1.55ct F IF Heart Lab Grown Diamond

EX • F/IF • IGI LG787622163

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG787622163

Diamond specifications and retailer prices

From $512 NZD
As of November 4, 2026
Save $3,579 NZD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,091 NZD at Brilliant Earth · As of November 5, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787622163 or 787622163. Listed at 24 retailers as of November 4, 2026, with prices from $512 to $4,091, a $3,579 spread on the same certified stone. Brilliant Earth lists it at $4,091. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787622163
Dimensions6.84 × 8.07 × 4.79 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm8.07 mm1.55 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787622163
Side View
Table 59.0%Crown 34.5°Girdle: MED-THKPavilion 41.2°Culet: NoneDepth 59.4%

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: Nov 4
Current: $4,091 NZD|Low: $512 NZD|High: $5,461 NZD|Avg: $1,469 NZD|-25.1%
Brilliant Earth
Retailer 2
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Retailer 21
November 5, 2026
Retailer 21$512 NZD
Retailer 11$573 NZD
Retailer 19$594 NZD
Retailer 8$635 NZD
Retailer 2$649 NZD
Retailer 4$854 NZD
Retailer 10$916 NZD
Retailer 18$1,094 NZD
Retailer 13$1,103 NZD
Retailer 12$1,222 NZD
Retailer 20$1,235 NZD
Retailer 16$1,487 NZD
Retailer 17$1,640 NZD
Retailer 6$1,864 NZD
Retailer 9$1,989 NZD
Retailer 14$2,040 NZD
Retailer 7$2,126 NZD
Retailer 3$2,272 NZD
Retailer 15$2,537 NZD
Retailer 5$2,620 NZD
Brilliant Earth$4,091 NZD

32 data points across 21 retailers

24 retailers$512 NZD to $4,091 NZD

A
Cheapest Retailer
-
$512 NZD
A
Retailer 2
-
$573 NZD
View
Final sale: no returns
A
Retailer 3
-
$594 NZD
View
A
Retailer 4
-
$635 NZD
View
A
Retailer 5
-
$649 NZD
View
Retailer 6
-
$655 NZD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$854 NZD
View
A
Retailer 8
-
$916 NZD
View
A
Retailer 9
-
$1,094 NZD
View
A
Retailer 10
-
$1,103 NZD
View
A
Retailer 11
-
$1,222 NZD
View
A
Retailer 12
-
$1,235 NZD
View
A
Retailer 13
-
$1,487 NZD
View
B+
Retailer 14
-
$1,640 NZD
View
B+
Retailer 15
-
$1,864 NZD
View
B+
Retailer 16
-
$1,989 NZD
View
B+
Retailer 17
-
$2,040 NZD
View
B+
Retailer 18
-
$2,126 NZD
View
B+
Retailer 19
-
$2,272 NZD
View
B+
Retailer 20
-
$2,537 NZD
View
B+
Retailer 21
-
$2,620 NZD
View
B
Retailer 22
-
$4,020 NZD
View
Retailer 23
-
$4,031 NZD
View
Price last confirmed 35 days ago
Most Expensive
B
Brilliant Earth
19073984A · Nov 5
$4,091 NZD
$2,300 USD
View
23 more retailers have this diamond
Prices start from $512 NZDSave up to $3,579 NZD

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
$512 NZD