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Heart|Lab Grown|IGI

1.83ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG648469519

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG648469519

Diamond specifications and retailer prices

From $774 NZD
$436 USD
As of November 1, 2026
Save $8,683 NZD (92%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,457 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.83ct lab-grown heart diamond

This 1.83ct 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 LG648469519 or 648469519. Listed at 8 retailers as of October 31, 2026, with prices from $774 to $9,457, a $8,683 spread on the same certified stone. Brilliant Earth lists it at $9,457. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648469519
Dimensions8.32 × 7.75 × 4.78 mm
L/W Ratio1.07
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
8.32 mm7.75 mm1.83 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648469519
Side View
Table 62.0%Crown 34°Girdle: STK-THKPavilion 37.4°Culet: NoneDepth 57.5%

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: Nov 1
Current: $9,457 NZD|Low: $774 NZD|High: $9,670 NZD|Avg: $3,343 NZD|-2.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8$774 NZD
Retailer 7$1,215 NZD
Retailer 2$1,384 NZD
Retailer 5$1,474 NZD
Retailer 6$2,039 NZD
Retailer 4$2,170 NZD
Retailer 3$8,335 NZD
Brilliant Earth$9,457 NZD

21 data points across 8 retailers

8 retailers$774 NZD to $9,457 NZD

A
Cheapest Retailer
-
$774 NZD
$436 USD
Final sale: no returns
A
Retailer 2
-
$1,215 NZD
$685 USD
View
A
Retailer 3
-
$1,384 NZD
€743 EUR
View
A
Retailer 4
-
$1,474 NZD
A$1,278 AUD
View
A
Retailer 5
-
$2,039 NZD
$1,149 USD
View
A
Retailer 6
-
$2,170 NZD
$1,223 USD
View
B
Retailer 7
-
$8,335 NZD
A$7,227 AUD
View
Most Expensive
B
Brilliant Earth
17140333A · Oct 31
$9,457 NZD
$5,330 USD
View
7 more retailers have this diamond
Prices start from $774 NZDSave up to $8,683 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
1.83ct Heart
$774 NZD