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Heart|Lab Grown|IGI

1.54ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG639410917

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG639410917

Diamond specifications and retailer prices

From $494 NZD
As of November 6, 2026
Save $3,907 NZD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,402 NZD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG639410917 or 639410917. Listed at 16 retailers as of November 6, 2026, with prices from $494 to $4,402, a $3,907 spread on the same certified stone. Do Amore Diamonds lists it at $4,402. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639410917
Dimensions7.39 × 8.19 × 4.41 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm8.19 mm1.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639410917
Side View
Table 58.0%Crown 36.6°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 53.8%

Caratlytics Score

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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 6
Current: $4,402 NZD|Low: $384 NZD|High: $4,402 NZD|Avg: $1,324 NZD|+19.0%
Do Amore Diamonds
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
November 6, 2026
Retailer 7$476 NZD
Retailer 15$494 NZD
Retailer 10$574 NZD
Retailer 3$613 NZD
Retailer 8$707 NZD
Retailer 14$745 NZD
Retailer 2$749 NZD
Retailer 6$902 NZD
Retailer 9$1,187 NZD
Retailer 13$1,223 NZD
Retailer 12$1,887 NZD
Retailer 5$2,111 NZD
Retailer 4$2,118 NZD
Retailer 11$2,179 NZD
Retailer 16$2,473 NZD
Do Amore Diamonds$4,402 NZD

35 data points across 16 retailers

16 retailers$494 NZD to $4,402 NZD

Retailer 1
-
$476 NZD
Price last confirmed 12 days ago
A
Retailer 2
-
$494 NZD
View
A
Retailer 3
-
$574 NZD
View
A
Retailer 4
-
$613 NZD
View
B+
Retailer 5
-
$707 NZD
View
A
Retailer 6
-
$745 NZD
View
B+
Retailer 7
-
$749 NZD
View
B+
Retailer 8
-
$902 NZD
View
B+
Retailer 9
-
$1,187 NZD
View
B+
Retailer 10
-
$1,223 NZD
View
B
Retailer 11
-
$1,887 NZD
View
B
Retailer 12
-
$2,111 NZD
View
Retailer 13
-
$2,118 NZD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$2,179 NZD
View
B
Retailer 15
-
$2,473 NZD
View
Most Expensive
B
Do Amore Diamonds
27-9496D356A · Nov 6
$4,402 NZD
$2,440 USD
View
15 more retailers have this diamond
Prices start from $494 NZDSave up to $3,907 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
$494 NZD