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Heart|Lab Grown|IGI

3.46ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660276

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660276

Diamond specifications and retailer prices

From $3,345 AUD
$2,350 USD
As of October 30, 2026
Save $19,717 AUD (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $23,062 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.46ct lab-grown heart diamond

This 3.46ct 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 LG804660276 or 804660276. Listed at 13 retailers as of October 29, 2026, with prices from $3,345 to $23,062, a $19,717 spread on the same certified stone. Do Amore Diamonds lists it at $23,062. 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

3.46
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660276
Dimensions10.22 × 9.78 × 6.09 mm
L/W Ratio1.04
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
10.22 mm9.78 mm3.46 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660276
Side View
Table 61.0%Crown 36.1°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 59.6%

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: $23,062 AUD|Low: $3,345 AUD|High: $28,016 AUD|Avg: $9,487 AUD|-17.7%
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
October 30, 2026
Retailer 2$3,345 AUD
Retailer 14$3,647 AUD
Retailer 10$3,918 AUD
Retailer 12$4,121 AUD
Retailer 3$4,516 AUD
Retailer 5$4,780 AUD
Retailer 13$5,899 AUD
Retailer 11$5,959 AUD
Retailer 9$6,067 AUD
Retailer 7$7,262 AUD
Retailer 6$9,196 AUD
Retailer 8$11,551 AUD
Retailer 4$21,810 AUD
Do Amore Diamonds$23,062 AUD

29 data points across 14 retailers

13 retailers$3,345 AUD to $23,062 AUD

A
Cheapest Retailer
-
$3,345 AUD
$2,350 USD
A
Retailer 2
-
$3,647 AUD
$2,562 USD
View
A
Retailer 3
-
$3,918 AUD
$2,752 USD
View
A
Retailer 4
-
$4,121 AUD
$2,895 USD
View
A
Retailer 5
-
$4,516 AUD
$3,172 USD
View
A
Retailer 6
-
$4,780 AUD
$3,358 USD
View
Final sale: no returns
A
Retailer 7
-
$5,899 AUD
$4,144 USD
View
A
Retailer 8
-
$5,959 AUD
$4,186 USD
View
A
Retailer 9
-
$6,067 AUD
$4,262 USD
View
B+
Retailer 10
-
$7,262 AUD
€4,858 EUR
View
B+
Retailer 11
-
$11,551 AUD
£6,389 GBP
View
B
Retailer 12
-
$21,810 AUD
$15,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-FFA854F6D · Oct 29
$23,062 AUD
$16,200 USD
View
12 more retailers have this diamond
Prices start from $3,345 AUDSave up to $19,717 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
3.46ct Heart
$3,345 AUD