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Heart|Lab Grown|IGI

1.55ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG635426777

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG635426777

Diamond specifications and retailer prices

From $548 NZD
$309 USD
As of November 1, 2026
Save $4,775 NZD (90%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,323 NZD at Brilliant Earth · As of October 31, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG635426777 or 635426777. Listed at 8 retailers as of October 31, 2026, with prices from $548 to $5,323, a $4,775 spread on the same certified stone. Brilliant Earth lists it at $5,323. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635426777
Dimensions8.03 × 6.96 × 4.68 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
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
8.03 mm6.96 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635426777
Side View
Table 57.0%Crown 39.8°Girdle: MED-STKPavilion 39°Culet: NoneDepth 58.3%

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: Nov 1
Current: $5,323 NZD|Low: $543 NZD|High: $6,512 NZD|Avg: $1,857 NZD|-18.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 10$548 NZD
Retailer 5$932 NZD
Retailer 8$1,001 NZD
Retailer 11$1,030 NZD
Retailer 7$1,073 NZD
Retailer 12$1,086 NZD
Retailer 9$1,410 NZD
Retailer 6$1,595 NZD
Retailer 4$2,039 NZD
Retailer 2$2,429 NZD
Retailer 3$3,071 NZD
Brilliant Earth$5,323 NZD

29 data points across 12 retailers

8 retailers$548 NZD to $5,323 NZD

A
Cheapest Retailer
-
$548 NZD
$309 USD
Final sale: no returns
A
Retailer 2
-
$932 NZD
$525 USD
View
A
Retailer 3
-
$1,001 NZD
$564 USD
View
A
Retailer 4
-
$1,073 NZD
$605 USD
View
A
Retailer 5
-
$1,410 NZD
A$1,223 AUD
View
A
Retailer 6
-
$1,595 NZD
$899 USD
View
B+
Retailer 7
-
$2,429 NZD
£1,078 GBP
View
Most Expensive
B
Brilliant Earth
15304938A · Oct 31
$5,323 NZD
$3,000 USD
View
7 more retailers have this diamond
Prices start from $548 NZDSave up to $4,775 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
$548 NZD