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Heart|Lab Grown|IGI

4.20ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG792615984

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG792615984

Diamond specifications and retailer prices

From $2,627 USD
£2,068 GBP
As of October 30, 2026
Save $12,773 USD (83%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $15,601 USD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 4.2ct lab-grown heart diamond

This 4.2ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG792615984 or 792615984. Listed at 26 retailers as of October 30, 2026, with a 486% 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

4.20
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792615984
Dimensions9.75 × 11.39 × 6.52 mm
L/W Ratio1.17
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
9.75 mm11.39 mm4.20 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792615984
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 57.2%

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: $15,601 USD|Low: $2,602 USD|High: $16,588 USD|Avg: $6,343 USD|-5.6%
Novita Diamonds
Retailer 2
Retailer 3
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Retailer 6
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Retailer 8
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Retailer 12
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Retailer 19
Retailer 20
October 30, 2026
Retailer 13$2,627 USD
Retailer 4$2,711 USD
Retailer 11$3,035 USD
Retailer 6$3,144 USD
Retailer 8$3,144 USD
Retailer 10$3,202 USD
Retailer 3$3,305 USD
Retailer 17$3,648 USD
Retailer 20$4,079 USD
Retailer 14$4,247 USD
Retailer 7$4,322 USD
Retailer 18$4,638 USD
Retailer 9$6,002 USD
Retailer 15$6,693 USD
Retailer 19$6,747 USD
Retailer 5$7,993 USD
Retailer 16$8,463 USD
Retailer 2$11,500 USD
Retailer 12$15,092 USD
Novita Diamonds$15,601 USD

34 data points across 20 retailers

26 retailers$2,627 USD to $15,400 USD

A
Cheapest Retailer
-
$2,627 USD
£2,068 GBP
A
Retailer 2
-
$2,711 USD
View
A
Retailer 3
-
$2,949 USD
View
A
Retailer 4
-
$3,035 USD
View
Final sale: no returns
Retailer 5
-
$3,144 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$3,144 USD
View
A
Retailer 7
-
$3,202 USD
View
A
Retailer 8
-
$3,305 USD
View
A
Retailer 9
-
$3,648 USD
HK$28,500 HKD
View
A
Retailer 10
-
$4,079 USD
View
A
Retailer 11
-
$4,247 USD
£3,344 GBP
View
A
Retailer 12
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$4,322 USD
View
A
Retailer 13
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$4,638 USD
View
A
Retailer 14
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$6,002 USD
View
A
Retailer 15
-
$6,693 USD
ZAR 108,128 ZAR
View
Retailer 16
-
$6,747 USD
A$10,380 AUD
View
Price last confirmed 8 days ago
A
Retailer 17
-
$7,899 USD
View
A
Retailer 18
-
$7,993 USD
View
A
Retailer 19
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$8,463 USD
£6,664 GBP
View
B+
Retailer 20
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$8,777 USD
View
Retailer 21
-
$9,423 USD
£7,420 GBP
View
Price last confirmed 21 days ago
B+
Retailer 22
-
$10,545 USD
SGD 14,250 SGD
View
B+
Retailer 23
-
$10,962 USD
View
B+
Retailer 24
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$11,500 USD
View
B
Retailer 25
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$15,400 USD
View
Most Expensive
Novita Diamonds
cert_792615984 · Oct 8
$15,601 USD
A$24,002 AUD
View
Price last confirmed 21 days ago
25 more retailers have this diamond
Prices start from $2,627 USDSave up to $12,773 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
4.20ct Heart
$2,627 USD