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Heart|Lab Grown|IGI

1.54ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG851609353

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG851609353

Diamond specifications and retailer prices

From $655 NZD
As of November 4, 2026
Save $4,348 NZD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,003 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG851609353 or 851609353. Listed at 19 retailers as of November 2, 2026, with prices from $655 to $5,003, a $4,348 spread on the same certified stone. Brilliant Earth lists it at $5,003. 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

1.54
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851609353
Dimensions7.19 × 7.98 × 4.53 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
7.19 mm7.98 mm1.54 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851609353
Side View
Table 58.0%Crown 37.4°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 56.8%

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: $5,003 NZD|Low: $655 NZD|High: $5,783 NZD|Avg: $1,716 NZD|-13.5%
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 5, 2026
Retailer 7$655 NZD
Retailer 8$733 NZD
Retailer 17$759 NZD
Retailer 9$811 NZD
Retailer 13$855 NZD
Retailer 11$885 NZD
Retailer 3$1,073 NZD
Retailer 5$1,263 NZD
Retailer 19$1,281 NZD
Retailer 15$1,297 NZD
Retailer 16$1,398 NZD
Retailer 2$1,449 NZD
Retailer 14$1,891 NZD
Retailer 4$2,379 NZD
Retailer 10$2,579 NZD
Retailer 18$2,608 NZD
Retailer 6$2,815 NZD
Retailer 12$3,163 NZD
Brilliant Earth$5,003 NZD

9 data points across 19 retailers

19 retailers$655 NZD to $5,003 NZD

A
Cheapest Retailer
-
$655 NZD
A
Retailer 2
-
$733 NZD
View
Final sale: no returns
A
Retailer 3
-
$759 NZD
View
A
Retailer 4
-
$811 NZD
View
A
Retailer 5
-
$855 NZD
View
A
Retailer 6
-
$885 NZD
View
A
Retailer 7
-
$1,073 NZD
View
A
Retailer 8
-
$1,263 NZD
View
A
Retailer 9
-
$1,281 NZD
View
A
Retailer 10
-
$1,297 NZD
View
A
Retailer 11
-
$1,398 NZD
View
A
Retailer 12
-
$1,449 NZD
View
B+
Retailer 13
-
$1,891 NZD
View
B+
Retailer 14
-
$2,379 NZD
View
B+
Retailer 15
-
$2,579 NZD
View
B+
Retailer 16
-
$2,608 NZD
View
B+
Retailer 17
-
$2,815 NZD
View
B+
Retailer 18
-
$3,163 NZD
View
Most Expensive
B
Brilliant Earth
22347510A · Nov 2
$5,003 NZD
$2,820 USD
View
18 more retailers have this diamond
Prices start from $655 NZDSave up to $4,348 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
1.54ct Heart
$655 NZD