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Heart|Lab Grown|IGI

1.55ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG665445007

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG665445007

Diamond specifications and retailer prices

From $494 NZD
As of November 6, 2026
Save $1,921 NZD (80%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,770 NZD at Brilliant Earth · As of October 25, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665445007 or 665445007. Listed at 24 retailers as of November 6, 2026, with a 389% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665445007
Dimensions7.28 × 7.77 × 4.68 mm
L/W Ratio1.07
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
7.28 mm7.77 mm1.55 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665445007
Side View
Table 57.0%Crown 36.7°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 60.2%

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 6
Current: $3,770 NZD|Low: $494 NZD|High: $3,770 NZD|Avg: $1,404 NZD
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 7, 2026
Retailer 4$494 NZD
Retailer 13$612 NZD
Retailer 8$622 NZD
Retailer 6$740 NZD
Retailer 16$904 NZD
Retailer 15$931 NZD
Retailer 18$992 NZD
Retailer 19$1,003 NZD
Retailer 11$1,010 NZD
Retailer 14$1,030 NZD
Retailer 2$1,167 NZD
Retailer 17$1,286 NZD
Retailer 9$1,771 NZD
Retailer 5$1,773 NZD
Retailer 3$1,858 NZD
Retailer 10$1,995 NZD
Retailer 12$2,190 NZD
Retailer 7$2,415 NZD
Brilliant Earth$3,770 NZD

31 data points across 19 retailers

24 retailers$494 NZD to $2,415 NZD

A
Cheapest Retailer
-
$494 NZD
Final sale: no returns
Retailer 2
-
$536 NZD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$612 NZD
View
Retailer 4
-
$622 NZD
View
Price last confirmed 39 days ago
A
Retailer 5
-
$622 NZD
View
Retailer 6
-
$664 NZD
View
Price last confirmed 23 days ago
Retailer 7
-
$664 NZD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$740 NZD
View
A
Retailer 9
-
$904 NZD
View
A
Retailer 10
-
$931 NZD
View
B+
Retailer 11
-
$992 NZD
View
B+
Retailer 12
-
$1,003 NZD
View
Retailer 13
-
$1,010 NZD
View
Price last confirmed 15 days ago
A
Retailer 14
-
$1,030 NZD
View
B+
Retailer 15
-
$1,167 NZD
View
B+
Retailer 16
-
$1,286 NZD
View
B
Retailer 17
-
$1,771 NZD
View
B+
Retailer 18
-
$1,773 NZD
View
B
Retailer 19
-
$1,858 NZD
View
B
Retailer 20
-
$1,995 NZD
View
Retailer 21
-
$2,136 NZD
View
Price last confirmed 22 days ago
B
Retailer 22
-
$2,190 NZD
View
B
Retailer 23
-
$2,415 NZD
View
Most Expensive
Brilliant Earth
18970826A · Oct 25
$3,770 NZD
$2,090 USD
View
Price last confirmed 12 days ago
23 more retailers have this diamond
Prices start from $494 NZDSave up to $1,921 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
$494 NZD