Heart|Lab Grown|IGI

1.09ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663964

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846663964

Diamond specifications and retailer prices

From $307 USD
As of October 30, 2026
Save $1,413 USD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,720 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663964 or 846663964. Listed at 12 retailers as of October 30, 2026, with prices from $307 to $1,720, a $1,413 spread on the same certified stone. Brilliant Earth lists it at $1,720. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663964
Dimensions6.36 × 6.95 × 4.20 mm
L/W Ratio1.09
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
6.36 mm6.95 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663964
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
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: $1,720 USD|Low: $307 USD|High: $2,860 USD|Avg: $844 USD|-39.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 8$307 USD
Retailer 9$320 USD
Retailer 7$467 USD
Retailer 10$470 USD
Retailer 4$570 USD
Retailer 5$619 USD
Retailer 3$667 USD
Retailer 2$953 USD
Retailer 12$997 USD
Retailer 11$1,250 USD
Retailer 6$1,520 USD
Brilliant Earth$1,720 USD

4 data points across 12 retailers

12 retailers$307 USD to $1,720 USD

A
Cheapest Retailer
-
$307 USD
A
Retailer 2
-
$320 USD
£252 GBP
View
A
Retailer 3
-
$467 USD
View
A
Retailer 4
-
$470 USD
View
A
Retailer 5
-
$570 USD
€543 EUR
View
B+
Retailer 6
-
$619 USD
View
B+
Retailer 7
-
$667 USD
View
B+
Retailer 8
-
$953 USD
View
B+
Retailer 9
-
$997 USD
View
B
Retailer 10
-
$1,250 USD
£984 GBP
View
B
Retailer 11
-
$1,520 USD
View
Most Expensive
B
Brilliant Earth
22319521A · Oct 30
$1,720 USD
View
11 more retailers have this diamond
Prices start from $307 USDSave up to $1,413 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
1.09ct Heart
$307 USD