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Heart|Lab Grown|IGI

1.91ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840632387

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840632387

Diamond specifications and retailer prices

From $818 USD
As of October 30, 2026
Save $3,722 USD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,540 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.91ct lab-grown heart diamond

This 1.91ct 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 LG840632387 or 840632387. Listed at 20 retailers as of October 30, 2026, with prices from $818 to $4,540, a $3,722 spread on the same certified stone. Brilliant Earth lists it at $4,540. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632387
Dimensions7.46 × 8.58 × 5.11 mm
L/W Ratio1.15
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
7.46 mm8.58 mm1.91 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632387
Side View
Table 58.0%Crown 37.2°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 59.6%

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: $4,540 USD|Low: $818 USD|High: $6,130 USD|Avg: $2,225 USD|-25.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 6$818 USD
Retailer 3$890 USD
Retailer 16$949 USD
Retailer 9$986 USD
Retailer 11$1,055 USD
Retailer 13$1,076 USD
Retailer 17$1,125 USD
Retailer 5$1,198 USD
Retailer 14$1,457 USD
Retailer 7$1,528 USD
Retailer 20$1,720 USD
Retailer 15$1,744 USD
Retailer 8$2,181 USD
Retailer 18$2,668 USD
Retailer 2$3,121 USD
Retailer 4$3,284 USD
Retailer 19$3,561 USD
Retailer 12$3,757 USD
Retailer 10$4,034 USD
Brilliant Earth$4,540 USD

21 data points across 20 retailers

20 retailers$818 USD to $4,540 USD

A
Cheapest Retailer
-
$818 USD
A
Retailer 2
-
$890 USD
View
A
Retailer 3
-
$949 USD
View
Retailer 4
-
$986 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,055 USD
View
Final sale: no returns
A
Retailer 6
-
$1,076 USD
£847 GBP
View
A
Retailer 7
-
$1,125 USD
View
A
Retailer 8
-
$1,198 USD
View
A
Retailer 9
-
$1,457 USD
£1,147 GBP
View
B+
Retailer 10
-
$1,528 USD
View
B+
Retailer 11
-
$1,720 USD
View
B+
Retailer 12
-
$1,744 USD
ZAR 28,174 ZAR
View
B+
Retailer 13
-
$2,181 USD
View
B+
Retailer 14
-
$2,668 USD
View
B+
Retailer 15
-
$3,121 USD
View
B
Retailer 16
-
$3,284 USD
View
B+
Retailer 17
-
$3,561 USD
£2,804 GBP
View
B
Retailer 18
-
$3,757 USD
SGD 5,077 SGD
View
B
Retailer 19
-
$4,034 USD
View
Most Expensive
B
Brilliant Earth
21738367A · Oct 30
$4,540 USD
View
19 more retailers have this diamond
Prices start from $818 USDSave up to $3,722 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
1.91ct Heart
$818 USD