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Heart|Lab Grown|IGI

1.29ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG776639120

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG776639120

Diamond specifications and retailer prices

From $311 USD
As of October 30, 2026
Save $1,236 USD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,547 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.29ct lab-grown heart diamond

This 1.29ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG776639120 or 776639120. Listed at 9 retailers as of October 30, 2026, with prices from $311 to $1,547, a $1,236 spread on the same certified stone. MOH London lists it at $1,547. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776639120
Dimensions6.94 × 7.66 × 4.41 mm
L/W Ratio1.10
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
6.94 mm7.66 mm1.29 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776639120
Side View
Table 60.0%Crown 33.8°Girdle: MED-STKPavilion 40°Culet: NoneDepth 57.6%

Caratlytics Score

How it works →
A+
Exceptional
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: $1,547 USD|Low: $311 USD|High: $2,004 USD|Avg: $882 USD|-21.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$311 USD
Retailer 2$361 USD
Retailer 9$447 USD
Retailer 4$615 USD
Retailer 8$628 USD
Retailer 6$635 USD
Retailer 5$1,132 USD
Retailer 3$1,241 USD
MOH London$1,547 USD

37 data points across 9 retailers

9 retailers$311 USD to $1,547 USD

A+
Cheapest Retailer
-
$311 USD
A
Retailer 2
-
$361 USD
View
A
Retailer 3
-
$447 USD
View
Final sale: no returns
A
Retailer 4
-
$615 USD
View
A
Retailer 5
-
$628 USD
View
A
Retailer 6
-
$635 USD
View
B+
Retailer 7
-
$1,132 USD
View
B+
Retailer 8
-
$1,241 USD
View
Most Expensive
B+
MOH London
LG776639120 · Nov 1
$1,547 USD
£1,218 GBP
View
8 more retailers have this diamond
Prices start from $311 USDSave up to $1,236 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+
1.29ct Heart
$311 USD