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Heart|Lab Grown|IGI

1.61ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG745505082

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG745505082

Diamond specifications and retailer prices

From $534 NZD
$301 USD
As of October 30, 2026
Save $6,226 NZD (92%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,760 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.61ct lab-grown heart diamond

This 1.61ct 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 LG745505082 or 745505082. Listed at 12 retailers as of October 30, 2026, with prices from $534 to $6,760, a $6,226 spread on the same certified stone. Brilliant Earth lists it at $6,760. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745505082
Dimensions7.04 × 8.31 × 4.69 mm
L/W Ratio1.18
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
7.04 mm8.31 mm1.61 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745505082
Side View
Table 58.0%Crown 34.6°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 56.4%

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: $6,760 NZD|Low: $534 NZD|High: $8,481 NZD|Avg: $2,440 NZD|-20.3%
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
November 1, 2026
Retailer 3$534 NZD
Retailer 13$619 NZD
Retailer 4$708 NZD
Retailer 9$1,056 NZD
Retailer 12$1,079 NZD
Retailer 11$1,128 NZD
Retailer 6$1,543 NZD
Retailer 5$1,558 NZD
Retailer 8$1,701 NZD
Retailer 10$1,810 NZD
Retailer 15$2,347 NZD
Retailer 2$2,925 NZD
Retailer 7$3,401 NZD
Retailer 14$4,737 NZD
Brilliant Earth$6,760 NZD

26 data points across 15 retailers

12 retailers$534 NZD to $6,760 NZD

A
Cheapest Retailer
-
$534 NZD
$301 USD
A
Retailer 2
-
$619 NZD
$349 USD
View
A
Retailer 3
-
$708 NZD
$399 USD
View
Final sale: no returns
A
Retailer 4
-
$1,056 NZD
$595 USD
View
A
Retailer 5
-
$1,079 NZD
$608 USD
View
A
Retailer 6
-
$1,128 NZD
$636 USD
View
A
Retailer 7
-
$1,701 NZD
A$1,475 AUD
View
A
Retailer 8
-
$1,810 NZD
$1,020 USD
View
B+
Retailer 9
-
$2,347 NZD
$1,323 USD
View
B+
Retailer 10
-
$2,925 NZD
£1,298 GBP
View
B
Retailer 11
-
$4,737 NZD
$2,670 USD
View
Most Expensive
B
Brilliant Earth
21415375Y · Oct 31
$6,760 NZD
$3,810 USD
View
11 more retailers have this diamond
Prices start from $534 NZDSave up to $6,226 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
1.61ct Heart
$534 NZD