Heart|Lab Grown|IGI

4.00ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804656578

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804656578

Diamond specifications and retailer prices

From $8,718 USD
As of October 30, 2026
Save $23,315 USD (73%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $32,033 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804656578 or 804656578. Listed at 19 retailers as of October 30, 2026, with prices from $8,718 to $32,033, a $23,315 spread on the same certified stone. Taylor and Hart lists it at $32,033. 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
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804656578
Dimensions10.82 × 10.39 × 6.22 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
10.82 mm10.39 mm4.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804656578
Side View
Table 58.0%Crown 36.5°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 57.5%

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: $21,526 USD|Low: $6,912 USD|High: $28,167 USD|Avg: $14,291 USD|+1.9%
Retailer 1
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
October 29, 2026
Retailer 9$6,912 USD
Retailer 17$8,718 USD
Retailer 5$8,966 USD
Retailer 7$9,330 USD
Retailer 6$9,764 USD
Retailer 16$10,020 USD
Retailer 12$10,050 USD
Retailer 2$10,113 USD
Retailer 4$10,113 USD
Retailer 15$11,249 USD
Retailer 14$12,388 USD
Retailer 11$18,512 USD
Retailer 10$18,757 USD
Retailer 13$21,190 USD
Retailer 1$21,526 USD
Retailer 3$25,898 USD
Retailer 8$28,167 USD

35 data points across 17 retailers

19 retailers$8,718 USD to $32,033 USD

A
Cheapest Retailer
-
$8,718 USD
B+
Retailer 2
-
$8,966 USD
View
B+
Retailer 3
-
$9,067 USD
View
B+
Retailer 4
-
$9,330 USD
View
B+
Retailer 5
-
$9,764 USD
View
Final sale: no returns
B+
Retailer 6
-
$10,020 USD
View
B+
Retailer 7
-
$10,050 USD
View
B+
Retailer 8
-
$10,113 USD
View
Retailer 9
-
$10,113 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
$11,249 USD
View
B+
Retailer 11
-
$11,374 USD
View
Retailer 12
-
$12,388 USD
£9,755 GBP
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$18,512 USD
£14,576 GBP
View
B
Retailer 14
-
$18,757 USD
€17,864 EUR
View
B+
Retailer 15
-
$21,190 USD
View
B+
Retailer 16
-
$21,526 USD
ZAR 347,756 ZAR
View
B
Retailer 17
-
$25,898 USD
View
B
Retailer 18
-
$28,167 USD
View
Most Expensive
B
Taylor and Hart
Y9WOHQC · Oct 30
$32,033 USD
View
18 more retailers have this diamond
Prices start from $8,718 USDSave up to $23,315 USD

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
$8,718 USD