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Heart|Lab Grown|IGI

4.00ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG784669568

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG784669568

Diamond specifications and retailer prices

From $4,620 AUD
$3,245 USD
As of October 30, 2026
Save $21,775 AUD (82%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $34,424 AUD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 4ct lab-grown heart diamond

This 4ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784669568 or 784669568. Listed at 24 retailers as of October 30, 2026, with a 471% 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

4.00
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784669568
Dimensions11.13 × 9.70 × 6.28 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
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
11.13 mm9.70 mm4.00 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784669568
Side View
Table 61.0%Crown 36.4°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 56.4%

Caratlytics Score

How it works →
A
Excellent
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: $34,424 AUD|Low: $4,620 AUD|High: $38,201 AUD|Avg: $11,823 AUD|-9.9%
Novita 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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 6$4,620 AUD
Retailer 21$5,027 AUD
Retailer 11$5,173 AUD
Retailer 8$5,262 AUD
Retailer 5$5,358 AUD
Retailer 3$5,581 AUD
Retailer 16$6,250 AUD
Retailer 20$6,537 AUD
Retailer 7$6,697 AUD
Retailer 2$7,071 AUD
Retailer 10$7,579 AUD
Retailer 18$7,915 AUD
Retailer 13$11,404 AUD
Retailer 19$11,545 AUD
Retailer 4$13,390 AUD
Retailer 15$13,656 AUD
Retailer 9$14,865 AUD
Retailer 17$18,075 AUD
Retailer 14$18,752 AUD
Retailer 12$26,395 AUD
Novita Diamonds$34,424 AUD

36 data points across 21 retailers

24 retailers$4,620 AUD to $26,395 AUD

A
Cheapest Retailer
-
$4,620 AUD
$3,245 USD
A
Retailer 2
-
$5,027 AUD
$3,531 USD
View
A
Retailer 3
-
$5,173 AUD
$3,634 USD
View
Final sale: no returns
A
Retailer 4
-
$5,262 AUD
$3,696 USD
View
Retailer 5
-
$5,358 AUD
$3,764 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$5,358 AUD
$3,764 USD
View
A
Retailer 7
-
$5,581 AUD
$3,920 USD
View
A
Retailer 8
-
$6,250 AUD
HK$34,300 HKD
View
A
Retailer 9
-
$6,537 AUD
$4,592 USD
View
A
Retailer 10
-
$6,697 AUD
$4,704 USD
View
A
Retailer 11
-
$7,071 AUD
£3,911 GBP
View
A
Retailer 12
-
$7,579 AUD
$5,324 USD
View
A
Retailer 13
-
$7,915 AUD
$5,560 USD
View
A
Retailer 14
-
$11,404 AUD
ZAR 129,411 ZAR
View
Retailer 15
-
$11,545 AUD
View
Price last confirmed 9 days ago
Retailer 16
-
$12,692 AUD
£7,020 GBP
View
Price last confirmed 22 days ago
B+
Retailer 17
-
$12,774 AUD
$8,973 USD
View
B+
Retailer 18
-
$13,390 AUD
$9,406 USD
View
B+
Retailer 19
-
$13,656 AUD
£7,553 GBP
View
B+
Retailer 20
-
$14,865 AUD
$10,442 USD
View
B+
Retailer 21
-
$18,075 AUD
SGD 17,158 SGD
View
B+
Retailer 22
-
$18,752 AUD
$13,172 USD
View
B
Retailer 23
-
$26,395 AUD
$18,541 USD
View
Most Expensive
Novita Diamonds
cert_784669568 · Oct 8
$34,424 AUD
View
Price last confirmed 23 days ago
23 more retailers have this diamond
Prices start from $4,620 AUDSave up to $21,775 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
4.00ct Heart
$4,620 AUD