Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846662427

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846662427

Diamond specifications and retailer prices

From $819 USD
£645 GBP
As of October 30, 2026
Save $4,191 USD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,010 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846662427 or 846662427. Listed at 10 retailers as of October 30, 2026, with prices from $819 to $5,010, a $4,191 spread on the same certified stone. Do Amore Diamonds lists it at $5,010. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662427
Dimensions7.55 × 7.18 × 4.69 mm
L/W Ratio1.05
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
7.55 mm7.18 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662427
Side View
Table 58.0%Crown 34.4°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $5,010 USD|Low: $819 USD|High: $5,710 USD|Avg: $2,223 USD|-12.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 3$819 USD
Retailer 6$840 USD
Retailer 10$875 USD
Retailer 7$1,077 USD
Retailer 4$1,247 USD
Retailer 8$1,736 USD
Retailer 9$2,159 USD
Retailer 5$3,059 USD
Retailer 2$3,350 USD
Do Amore Diamonds$5,010 USD

12 data points across 10 retailers

10 retailers$819 USD to $5,010 USD

A
Cheapest Retailer
-
$819 USD
£645 GBP
A
Retailer 2
-
$840 USD
View
A
Retailer 3
-
$875 USD
View
A
Retailer 4
-
$1,077 USD
View
B+
Retailer 5
-
$1,247 USD
€1,188 EUR
View
B+
Retailer 6
-
$1,736 USD
View
B
Retailer 7
-
$2,159 USD
View
B
Retailer 8
-
$3,059 USD
£2,409 GBP
View
B
Retailer 9
-
$3,350 USD
View
Most Expensive
B
Do Amore Diamonds
27-3C43927AF · Oct 31
$5,010 USD
View
9 more retailers have this diamond
Prices start from $819 USDSave up to $4,191 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
$819 USD