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Heart|Lab Grown|IGI

4.12ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG845617176

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG845617176

Diamond specifications and retailer prices

From $1,006 AUD
$707 USD
As of October 31, 2026
Save $719 AUD (42%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $12,784 AUD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 4.12ct lab-grown heart diamond

This 4.12ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845617176 or 845617176. Listed at 3 retailers as of October 28, 2026, with a 71% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.12
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845617176
Dimensions10.04 × 11.01 × 6.61 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.04 mm11.01 mm4.12 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845617176
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.0%

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 31
Current: $1,006 AUD|Low: $997 AUD|High: $1,738 AUD|Avg: $1,457 AUD|+1.0%
Retailer 1
Retailer 2
October 28, 2026
Retailer 1$1,006 AUD
Retailer 2$1,725 AUD

14 data points across 2 retailers

3 retailers$1,006 AUD to $1,725 AUD

A
Cheapest Retailer
-
$1,006 AUD
$707 USD
Final sale: no returns
A
Retailer 2
-
$1,725 AUD
£954 GBP
View
Most Expensive
Brilliant Earth
22002554A · Oct 26
$12,784 AUD
$8,980 USD
View
Price under review
2 more retailers have this diamond
Prices start from $1,006 AUDSave up to $719 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
4.12ct Heart
$1,006 AUD