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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 $298 AUD
$209 USD
As of October 30, 2026
Save $2,564 AUD (90%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,861 AUD at Do Amore Diamonds · As of October 29, 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 29, 2026, with prices from $298 to $2,861, a $2,564 spread on the same certified stone. Do Amore Diamonds lists it at $2,861. 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

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: Oct 30
Current: $2,861 AUD|Low: $226 AUD|High: $2,918 AUD|Avg: $1,059 AUD|-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$298 AUD
Retailer 6$333 AUD
Retailer 5$635 AUD
Retailer 7$686 AUD
Retailer 8$740 AUD
Retailer 9$827 AUD
Retailer 10$1,059 AUD
Retailer 3$1,192 AUD
Retailer 2$1,636 AUD
Do Amore Diamonds$2,861 AUD

12 data points across 10 retailers

8 retailers$298 AUD to $2,861 AUD

A
Cheapest Retailer
-
$298 AUD
$209 USD
A
Retailer 2
-
$333 AUD
$234 USD
View
Final sale: no returns
A
Retailer 3
-
$346 AUD
$243 USD
View
B
Retailer 4
-
$635 AUD
$446 USD
View
B
Retailer 5
-
$1,192 AUD
$837 USD
View
B
Retailer 6
-
$1,310 AUD
$920 USD
View
B
Retailer 7
-
$1,636 AUD
£905 GBP
View
Most Expensive
C
Do Amore Diamonds
27-3A9B3D2D2 · Oct 29
$2,861 AUD
$2,010 USD
View
7 more retailers have this diamond
Prices start from $298 AUDSave up to $2,564 AUD

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
$298 AUD