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Heart|Lab Grown|IGI

1.51ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG843639220

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843639220

Diamond specifications and retailer prices

From $472 USD
As of October 30, 2026
Save $2,917 USD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,389 USD at Novita Diamonds · As of October 31, 2026
View at Novita Diamonds

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG843639220 or 843639220. Listed at 21 retailers as of October 30, 2026, with prices from $472 to $3,389, a $2,917 spread on the same certified stone. Novita Diamonds lists it at $3,389. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843639220
Dimensions6.86 × 8.02 × 4.60 mm
L/W Ratio1.17
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
6.86 mm8.02 mm1.51 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843639220
Side View
Table 63.0%Crown 35.4°Girdle: MED-THKPavilion 37.9°Culet: NoneDepth 57.4%

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: $3,389 USD|Low: $472 USD|High: $3,389 USD|Avg: $1,235 USD
Novita Diamonds
Retailer 2
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Retailer 21
November 2, 2026
Retailer 6$472 USD
Retailer 4$528 USD
Retailer 7$528 USD
Retailer 10$585 USD
Retailer 20$585 USD
Retailer 15$618 USD
Retailer 16$700 USD
Retailer 14$785 USD
Retailer 9$895 USD
Retailer 2$970 USD
Retailer 19$1,005 USD
Retailer 8$1,069 USD
Retailer 17$1,359 USD
Retailer 18$1,362 USD
Retailer 12$1,817 USD
Retailer 21$1,880 USD
Retailer 11$1,909 USD
Retailer 3$2,060 USD
Retailer 13$2,148 USD
Retailer 5$2,845 USD
Novita Diamonds$3,389 USD

22 data points across 21 retailers

21 retailers$472 USD to $3,389 USD

A
Cheapest Retailer
-
$472 USD
A
Retailer 2
-
$528 USD
View
Final sale: no returns
A
Retailer 3
-
$528 USD
View
Retailer 4
-
$585 USD
View
Price last confirmed 16 days ago
A
Retailer 5
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$585 USD
View
A
Retailer 6
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$618 USD
£487 GBP
View
A
Retailer 7
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$700 USD
View
A
Retailer 8
-
$785 USD
View
A
Retailer 9
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$895 USD
View
A
Retailer 10
-
$970 USD
£764 GBP
View
A
Retailer 11
-
$1,005 USD
ZAR 16,232 ZAR
View
B+
Retailer 12
-
$1,069 USD
View
B+
Retailer 13
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$1,359 USD
View
B+
Retailer 14
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$1,362 USD
A$2,095 AUD
View
B
Retailer 15
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$1,817 USD
View
B
Retailer 16
-
$1,880 USD
View
B
Retailer 17
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$1,909 USD
View
B
Retailer 18
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$2,060 USD
View
B
Retailer 19
-
$2,148 USD
£1,691 GBP
View
B
Retailer 20
-
$2,845 USD
£2,240 GBP
View
Most Expensive
B
Novita Diamonds
cert_843639220 · Oct 31
$3,389 USD
A$5,214 AUD
View
20 more retailers have this diamond
Prices start from $472 USDSave up to $2,917 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
1.51ct Heart
$472 USD