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Heart|Lab Grown|IGI

1.51ct E SI1 Heart Lab Grown Diamond

VG • E/SI1 • IGI LG459130247

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG459130247

Diamond specifications and retailer prices

From $371 NZD
$209 USD
As of October 30, 2026
Save $3,196 NZD (90%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,566 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG459130247 or 459130247. Listed at 8 retailers as of October 30, 2026, with prices from $371 to $3,566, a $3,196 spread on the same certified stone. Do Amore Diamonds lists it at $3,566. 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

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.8°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459130247
Dimensions7.92 × 6.78 × 4.54 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.92 mm6.78 mm1.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459130247
Side View
Table 60.5%Crown 35.8°Girdle: THK-VTKPavilion 37.9°Culet: NoneDepth 57.3%

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: Oct 30
Current: $3,566 NZD|Low: $282 NZD|High: $3,637 NZD|Avg: $1,320 NZD|-2.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 26, 2026
Retailer 4$371 NZD
Retailer 6$415 NZD
Retailer 5$791 NZD
Retailer 7$855 NZD
Retailer 8$922 NZD
Retailer 9$1,031 NZD
Retailer 10$1,320 NZD
Retailer 3$1,485 NZD
Retailer 2$2,039 NZD
Do Amore Diamonds$3,566 NZD

12 data points across 10 retailers

8 retailers$371 NZD to $3,566 NZD

A
Cheapest Retailer
-
$371 NZD
$209 USD
A
Retailer 2
-
$415 NZD
$234 USD
View
Final sale: no returns
A
Retailer 3
-
$431 NZD
$243 USD
View
B
Retailer 4
-
$791 NZD
$446 USD
View
B
Retailer 5
-
$1,485 NZD
$837 USD
View
B
Retailer 6
-
$1,632 NZD
$920 USD
View
B
Retailer 7
-
$2,039 NZD
£905 GBP
View
Most Expensive
C
Do Amore Diamonds
27-3A9B3D2D2 · Oct 31
$3,566 NZD
$2,010 USD
View
7 more retailers have this diamond
Prices start from $371 NZDSave up to $3,196 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
1.51ct Heart
$371 NZD