Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG825656728

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825656728

Diamond specifications and retailer prices

From $651 USD
As of October 30, 2026
Save $2,537 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,188 USD at MOH London · As of October 26, 2026
View at MOH London

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 FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825656728 or 825656728. Listed at 19 retailers as of October 26, 2026, with prices from $651 to $3,188, a $2,537 spread on the same certified stone. MOH London lists it at $3,188. 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
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825656728
Dimensions7.20 × 8.03 × 4.50 mm
L/W Ratio1.12
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
7.20 mm8.03 mm1.51 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825656728
Side View
Table 59.0%Crown 35.8°Girdle: MED-THKPavilion 35.9°Culet: NoneDepth 56.0%

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: $3,188 USD|Low: $651 USD|High: $3,904 USD|Avg: $1,796 USD|-18.1%
MOH London
Retailer 2
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Retailer 19
October 31, 2026
Retailer 5$651 USD
Retailer 18$709 USD
Retailer 7$729 USD
Retailer 15$756 USD
Retailer 14$857 USD
Retailer 12$890 USD
Retailer 11$1,028 USD
Retailer 9$1,074 USD
Retailer 3$1,129 USD
Retailer 8$1,138 USD
Retailer 2$1,208 USD
Retailer 17$1,388 USD
Retailer 13$1,739 USD
Retailer 6$1,913 USD
Retailer 16$2,125 USD
Retailer 4$2,439 USD
Retailer 10$2,607 USD
Retailer 19$2,634 USD
MOH London$3,188 USD

27 data points across 19 retailers

19 retailers$651 USD to $3,188 USD

A
Cheapest Retailer
-
$651 USD
A
Retailer 2
-
$709 USD
View
A
Retailer 3
-
$729 USD
View
Final sale: no returns
A
Retailer 4
-
$756 USD
View
A
Retailer 5
-
$857 USD
£675 GBP
View
A
Retailer 6
-
$890 USD
View
Retailer 7
-
$1,028 USD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
$1,074 USD
View
B+
Retailer 9
-
$1,129 USD
View
B+
Retailer 10
-
$1,138 USD
View
B+
Retailer 11
-
$1,208 USD
£951 GBP
View
B+
Retailer 12
-
$1,388 USD
ZAR 22,429 ZAR
View
B+
Retailer 13
-
$1,739 USD
View
B
Retailer 14
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$1,913 USD
View
B
Retailer 15
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$2,125 USD
View
B
Retailer 16
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$2,439 USD
View
B
Retailer 17
-
$2,607 USD
View
B
Retailer 18
-
$2,634 USD
View
Most Expensive
B
MOH London
LG825656728 · Oct 26
$3,188 USD
£2,510 GBP
View
18 more retailers have this diamond
Prices start from $651 USDSave up to $2,537 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
$651 USD