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Heart|Lab Grown|IGI

4.18ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG754594326

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG754594326

Diamond specifications and retailer prices

From $3,121 USD
As of October 30, 2026
Save $21,840 USD (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $24,961 USD at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 4.18ct lab-grown heart diamond

This 4.18ct 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 LG754594326 or 754594326. Listed at 15 retailers as of October 30, 2026, with prices from $3,121 to $24,961, a $21,840 spread on the same certified stone. Novita Diamonds lists it at $24,961. 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

4.18
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594326
Dimensions10.26 × 10.84 × 6.47 mm
L/W Ratio1.06
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
10.26 mm10.84 mm4.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594326
Side View
Table 58.0%Crown 36.5°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 59.7%

Caratlytics Score

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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: $24,961 USD|Low: $3,051 USD|High: $28,042 USD|Avg: $9,114 USD|-1.3%
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
November 1, 2026
Retailer 14$3,121 USD
Retailer 6$3,396 USD
Retailer 16$3,536 USD
Retailer 7$3,560 USD
Retailer 5$3,780 USD
Retailer 11$4,423 USD
Retailer 4$4,994 USD
Retailer 17$5,095 USD
Retailer 15$5,624 USD
Retailer 12$6,534 USD
Retailer 8$6,830 USD
Retailer 2$8,560 USD
Retailer 10$8,624 USD
Retailer 13$11,680 USD
Retailer 9$16,039 USD
Retailer 3$21,470 USD
Novita Diamonds$24,961 USD

32 data points across 17 retailers

15 retailers$3,121 USD to $24,961 USD

A
Cheapest Retailer
-
$3,121 USD
A
Retailer 2
-
$3,396 USD
View
A
Retailer 3
-
$3,536 USD
View
A
Retailer 4
-
$3,560 USD
View
Final sale: no returns
A
Retailer 5
-
$3,780 USD
View
A
Retailer 6
-
$4,423 USD
View
A
Retailer 7
-
$4,994 USD
View
A
Retailer 8
-
$5,095 USD
View
A
Retailer 9
-
$5,624 USD
View
A
Retailer 10
-
$6,534 USD
€6,223 EUR
View
A
Retailer 11
-
$8,560 USD
£6,740 GBP
View
B+
Retailer 12
-
$8,624 USD
A$13,268 AUD
View
B+
Retailer 13
-
$11,680 USD
View
B
Retailer 14
-
$21,470 USD
View
Most Expensive
B
Novita Diamonds
cert_754594326 · Nov 1
$24,961 USD
A$38,401 AUD
View
14 more retailers have this diamond
Prices start from $3,121 USDSave up to $21,840 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
4.18ct Heart
$3,121 USD