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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 $1,451 NZD
$818 USD
As of October 30, 2026
Save $6,604 NZD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,055 NZD at Brilliant Earth · As of October 31, 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 $1,451 to $8,055, a $6,604 spread on the same certified stone. Brilliant Earth lists it at $8,055. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $8,055 NZD|Low: $1,451 NZD|High: $10,876 NZD|Avg: $3,923 NZD|-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
November 1, 2026
Retailer 7$1,451 NZD
Retailer 4$1,579 NZD
Retailer 18$1,684 NZD
Retailer 9$1,749 NZD
Retailer 11$1,872 NZD
Retailer 13$1,903 NZD
Retailer 19$1,996 NZD
Retailer 6$2,126 NZD
Retailer 14$2,585 NZD
Retailer 8$2,711 NZD
Retailer 3$3,052 NZD
Retailer 17$3,094 NZD
Retailer 15$3,522 NZD
Retailer 20$4,734 NZD
Retailer 16$5,538 NZD
Retailer 5$5,828 NZD
Retailer 2$6,309 NZD
Retailer 12$6,666 NZD
Retailer 10$7,158 NZD
Brilliant Earth$8,055 NZD

23 data points across 20 retailers

20 retailers$1,451 NZD to $8,055 NZD

A
Cheapest Retailer
-
$1,451 NZD
$818 USD
A
Retailer 2
-
$1,579 NZD
$890 USD
View
A
Retailer 3
-
$1,684 NZD
$949 USD
View
Retailer 4
-
$1,749 NZD
$986 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$1,872 NZD
$1,055 USD
View
Final sale: no returns
A
Retailer 6
-
$1,903 NZD
£844 GBP
View
A
Retailer 7
-
$1,996 NZD
$1,125 USD
View
A
Retailer 8
-
$2,126 NZD
$1,198 USD
View
A
Retailer 9
-
$2,585 NZD
£1,147 GBP
View
B+
Retailer 10
-
$2,711 NZD
$1,528 USD
View
B+
Retailer 11
-
$3,052 NZD
$1,720 USD
View
B+
Retailer 12
-
$3,094 NZD
ZAR 28,174 ZAR
View
B+
Retailer 13
-
$3,522 NZD
$1,985 USD
View
B+
Retailer 14
-
$4,734 NZD
$2,668 USD
View
B
Retailer 15
-
$5,538 NZD
$3,121 USD
View
B
Retailer 16
-
$5,828 NZD
$3,284 USD
View
B
Retailer 17
-
$6,309 NZD
£2,800 GBP
View
B
Retailer 18
-
$6,666 NZD
SGD 5,077 SGD
View
B
Retailer 19
-
$7,158 NZD
$4,034 USD
View
Most Expensive
B
Brilliant Earth
21738367A · Oct 31
$8,055 NZD
$4,540 USD
View
19 more retailers have this diamond
Prices start from $1,451 NZDSave up to $6,604 NZD

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
$1,451 NZD