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Heart|Lab Grown|IGI

4.12ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846662167

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846662167

Diamond specifications and retailer prices

From $5,690 AUD
$3,997 USD
As of October 30, 2026
Save $33,615 AUD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $39,306 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.12ct lab-grown heart diamond

This 4.12ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846662167 or 846662167. Listed at 12 retailers as of October 30, 2026, with prices from $5,690 to $39,306, a $33,615 spread on the same certified stone. Do Amore Diamonds lists it at $39,306. 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
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662167
Dimensions9.73 × 10.83 × 6.54 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
9.73 mm10.83 mm4.12 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662167
Side View
Table 62.0%Crown 36.2°Girdle: THK-VTKPavilion 40.1°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $39,306 AUD|Low: $5,690 AUD|High: $41,270 AUD|Avg: $12,967 AUD|-4.8%
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
November 1, 2026
Retailer 8$5,690 AUD
Retailer 4$5,988 AUD
Retailer 9$6,111 AUD
Retailer 2$6,146 AUD
Retailer 6$6,500 AUD
Retailer 5$6,677 AUD
Retailer 12$8,789 AUD
Retailer 3$9,141 AUD
Retailer 11$10,266 AUD
Retailer 10$15,229 AUD
Retailer 7$18,023 AUD
Do Amore Diamonds$39,306 AUD

14 data points across 12 retailers

12 retailers$5,690 AUD to $39,306 AUD

A+
Cheapest Retailer
-
$5,690 AUD
$3,997 USD
A
Retailer 2
-
$5,988 AUD
$4,206 USD
View
A
Retailer 3
-
$6,111 AUD
£3,380 GBP
View
A
Retailer 4
-
$6,146 AUD
$4,317 USD
View
A
Retailer 5
-
$6,500 AUD
$4,566 USD
View
A
Retailer 6
-
$6,677 AUD
$4,690 USD
View
A
Retailer 7
-
$8,789 AUD
$6,174 USD
View
A
Retailer 8
-
$9,141 AUD
$6,421 USD
View
A
Retailer 9
-
$10,266 AUD
$7,211 USD
View
B+
Retailer 10
-
$15,229 AUD
£8,423 GBP
View
B+
Retailer 11
-
$18,023 AUD
$12,660 USD
View
Most Expensive
B
Do Amore Diamonds
27-2AEFE2FD2 · Oct 31
$39,306 AUD
$27,610 USD
View
11 more retailers have this diamond
Prices start from $5,690 AUDSave up to $33,615 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
$5,690 AUD