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Heart|Lab Grown|IGI

2.31ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840632380

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840632380

Diamond specifications and retailer prices

From $2,092 NZD
$1,179 USD
As of October 30, 2026
Save $9,796 NZD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,888 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.31ct lab-grown heart diamond

This 2.31ct lab-grown heart sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840632380 or 840632380. Listed at 20 retailers as of October 30, 2026, with prices from $2,092 to $11,888, a $9,796 spread on the same certified stone. Brilliant Earth lists it at $11,888. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632380
Dimensions7.91 × 9.09 × 5.44 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
7.91 mm9.09 mm2.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632380
Side View
Table 58.0%Crown 37.2°Girdle: Slightly ThickPavilion 38.9°Culet: NoneDepth 59.8%

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: $11,888 NZD|Low: $2,092 NZD|High: $14,336 NZD|Avg: $5,518 NZD|-17.1%
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$2,092 NZD
Retailer 3$2,275 NZD
Retailer 11$2,404 NZD
Retailer 18$2,425 NZD
Retailer 2$2,670 NZD
Retailer 17$2,732 NZD
Retailer 12$2,789 NZD
Retailer 6$2,818 NZD
Retailer 13$3,490 NZD
Retailer 9$3,852 NZD
Retailer 20$4,189 NZD
Retailer 14$4,359 NZD
Retailer 19$4,546 NZD
Retailer 15$6,258 NZD
Retailer 8$6,961 NZD
Retailer 16$7,835 NZD
Retailer 10$8,482 NZD
Retailer 4$8,496 NZD
Retailer 5$9,189 NZD
Brilliant Earth$11,888 NZD

24 data points across 20 retailers

20 retailers$2,092 NZD to $11,888 NZD

A
Cheapest Retailer
-
$2,092 NZD
$1,179 USD
A
Retailer 2
-
$2,275 NZD
$1,282 USD
View
A
Retailer 3
-
$2,404 NZD
$1,355 USD
View
Final sale: no returns
A
Retailer 4
-
$2,425 NZD
$1,367 USD
View
A
Retailer 5
-
$2,670 NZD
£1,185 GBP
View
A
Retailer 6
-
$2,732 NZD
$1,540 USD
View
Retailer 7
-
$2,789 NZD
$1,572 USD
View
Price last confirmed 19 days ago
A
Retailer 8
-
$2,818 NZD
$1,588 USD
View
A
Retailer 9
-
$3,490 NZD
£1,549 GBP
View
B+
Retailer 10
-
$3,852 NZD
$2,171 USD
View
B+
Retailer 11
-
$4,189 NZD
$2,361 USD
View
B+
Retailer 12
-
$4,359 NZD
$2,457 USD
View
B+
Retailer 13
-
$4,546 NZD
$2,562 USD
View
B+
Retailer 14
-
$6,258 NZD
ZAR 56,982 ZAR
View
B+
Retailer 15
-
$6,961 NZD
$3,923 USD
View
B+
Retailer 16
-
$7,835 NZD
£3,477 GBP
View
B
Retailer 17
-
$8,482 NZD
SGD 6,460 SGD
View
B
Retailer 18
-
$8,496 NZD
$4,788 USD
View
B
Retailer 19
-
$9,189 NZD
$5,179 USD
View
Most Expensive
B
Brilliant Earth
21738461A · Oct 31
$11,888 NZD
$6,700 USD
View
19 more retailers have this diamond
Prices start from $2,092 NZDSave up to $9,796 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
2.31ct Heart
$2,092 NZD