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Heart|Lab Grown|IGI

1.81ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG735531782

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG735531782

Diamond specifications and retailer prices

From $598 NZD
$337 USD
As of October 30, 2026
Save $8,309 NZD (93%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,907 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.81ct lab-grown heart diamond

This 1.81ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG735531782 or 735531782. Listed at 14 retailers as of October 30, 2026, with prices from $598 to $8,907, a $8,309 spread on the same certified stone. Brilliant Earth lists it at $8,907. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735531782
Dimensions7.48 × 8.64 × 4.77 mm
L/W Ratio1.16
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
7.48 mm8.64 mm1.81 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735531782
Side View
Table 63.0%Crown 39.4°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 55.2%

Caratlytics Score

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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: $8,907 NZD|Low: $598 NZD|High: $9,563 NZD|Avg: $2,697 NZD|-6.9%
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
November 1, 2026
Retailer 6$598 NZD
Retailer 15$688 NZD
Retailer 14$694 NZD
Retailer 10$869 NZD
Retailer 16$944 NZD
Retailer 13$995 NZD
Retailer 12$1,217 NZD
Retailer 7$1,446 NZD
Retailer 9$1,901 NZD
Retailer 11$2,049 NZD
Retailer 4$2,633 NZD
Retailer 5$2,837 NZD
Retailer 2$3,200 NZD
Retailer 8$3,382 NZD
Retailer 3$5,305 NZD
Brilliant Earth$8,907 NZD

30 data points across 16 retailers

14 retailers$598 NZD to $8,907 NZD

A
Cheapest Retailer
-
$598 NZD
$337 USD
A
Retailer 2
-
$688 NZD
$388 USD
View
Final sale: no returns
A
Retailer 3
-
$694 NZD
$391 USD
View
A
Retailer 4
-
$869 NZD
$490 USD
View
A
Retailer 5
-
$944 NZD
$532 USD
View
A
Retailer 6
-
$995 NZD
$561 USD
View
A
Retailer 7
-
$1,217 NZD
$686 USD
View
A
Retailer 8
-
$1,901 NZD
A$1,648 AUD
View
A
Retailer 9
-
$2,049 NZD
$1,155 USD
View
B+
Retailer 10
-
$2,633 NZD
$1,484 USD
View
B+
Retailer 11
-
$2,837 NZD
$1,599 USD
View
B+
Retailer 12
-
$3,200 NZD
£1,420 GBP
View
B
Retailer 13
-
$5,305 NZD
$2,990 USD
View
Most Expensive
B
Brilliant Earth
21405077Y · Oct 31
$8,907 NZD
$5,020 USD
View
13 more retailers have this diamond
Prices start from $598 NZDSave up to $8,309 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
1.81ct Heart
$598 NZD