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Heart|Lab Grown|IGI

4.25ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660315

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660315

Diamond specifications and retailer prices

From $5,861 AUD
$4,117 USD
As of October 30, 2026
Save $34,626 AUD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $40,487 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.25ct lab-grown heart diamond

This 4.25ct 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 LG804660315 or 804660315. Listed at 13 retailers as of October 30, 2026, with prices from $5,861 to $40,487, a $34,626 spread on the same certified stone. Do Amore Diamonds lists it at $40,487. 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

4.25
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660315
Dimensions10.24 × 10.80 × 6.37 mm
L/W Ratio1.05
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
10.24 mm10.80 mm4.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660315
Side View
Table 61.0%Crown 36.4°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 59.0%

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 30
Current: $40,487 AUD|Low: $5,861 AUD|High: $45,356 AUD|Avg: $15,081 AUD|-10.7%
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
Retailer 15
October 31, 2026
Retailer 9$5,861 AUD
Retailer 3$6,167 AUD
Retailer 12$6,349 AUD
Retailer 4$6,872 AUD
Retailer 15$6,897 AUD
Retailer 5$7,756 AUD
Retailer 13$8,883 AUD
Retailer 14$9,416 AUD
Retailer 11$10,569 AUD
Retailer 2$12,937 AUD
Retailer 6$14,804 AUD
Retailer 10$15,686 AUD
Retailer 8$22,436 AUD
Retailer 7$28,294 AUD
Do Amore Diamonds$40,487 AUD

31 data points across 15 retailers

13 retailers$5,861 AUD to $40,487 AUD

A
Cheapest Retailer
-
$5,861 AUD
$4,117 USD
A
Retailer 2
-
$6,167 AUD
$4,332 USD
View
A
Retailer 3
-
$6,349 AUD
$4,460 USD
View
A
Retailer 4
-
$6,872 AUD
$4,827 USD
View
A
Retailer 5
-
$6,897 AUD
$4,845 USD
View
A
Retailer 6
-
$7,756 AUD
$5,448 USD
View
Final sale: no returns
A
Retailer 7
-
$8,883 AUD
$6,240 USD
View
A
Retailer 8
-
$9,416 AUD
$6,614 USD
View
A
Retailer 9
-
$10,569 AUD
$7,424 USD
View
A
Retailer 10
-
$12,937 AUD
€8,655 EUR
View
B+
Retailer 11
-
$15,686 AUD
£8,676 GBP
View
B+
Retailer 12
-
$22,436 AUD
$15,760 USD
View
Most Expensive
B
Do Amore Diamonds
27-FF0CCDED2 · Oct 31
$40,487 AUD
$28,440 USD
View
12 more retailers have this diamond
Prices start from $5,861 AUDSave up to $34,626 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
4.25ct Heart
$5,861 AUD