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Radiant|Lab Grown|IGI

1.61ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754594007

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG754594007

Diamond specifications and retailer prices

From $481 NZD
$271 USD
As of October 30, 2026
Save $5,286 NZD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,766 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.61ct lab-grown radiant diamond

This 1.61ct lab-grown radiant 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 LG754594007 or 754594007. Listed at 17 retailers as of October 30, 2026, with prices from $481 to $5,766, a $5,286 spread on the same certified stone. Brilliant Earth lists it at $5,766. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594007
Dimensions8.43 × 8.43 × 5.74 mm
L/W Ratio1.00
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
8.43 mm8.43 mm1.61 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594007
Side View
Table 59.0%Crown 42.8°Girdle: Slightly ThickPavilion 34.4°Culet: NoneDepth 66.9%

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: $5,766 NZD|Low: $481 NZD|High: $8,481 NZD|Avg: $2,292 NZD|-32.0%
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
October 31, 2026
Retailer 12$481 NZD
Retailer 5$557 NZD
Retailer 9$600 NZD
Retailer 13$908 NZD
Retailer 7$985 NZD
Retailer 16$988 NZD
Retailer 2$1,095 NZD
Retailer 3$1,545 NZD
Retailer 8$1,584 NZD
Retailer 15$1,833 NZD
Retailer 4$1,898 NZD
Retailer 17$2,117 NZD
Retailer 11$2,652 NZD
Retailer 10$3,057 NZD
Retailer 14$4,276 NZD
Retailer 6$4,941 NZD
Brilliant Earth$5,766 NZD

35 data points across 17 retailers

17 retailers$481 NZD to $5,766 NZD

A
Cheapest Retailer
-
$481 NZD
$271 USD
A
Retailer 2
-
$557 NZD
$314 USD
View
A
Retailer 3
-
$600 NZD
$338 USD
View
Final sale: no returns
A
Retailer 4
-
$908 NZD
$512 USD
View
A
Retailer 5
-
$985 NZD
$555 USD
View
A
Retailer 6
-
$988 NZD
$557 USD
View
A
Retailer 7
-
$1,095 NZD
€588 EUR
View
Retailer 8
-
$1,545 NZD
A$1,340 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$1,584 NZD
$893 USD
View
B+
Retailer 10
-
$1,833 NZD
$1,033 USD
View
A
Retailer 11
-
$1,898 NZD
$1,070 USD
View
B+
Retailer 12
-
$2,117 NZD
$1,193 USD
View
B+
Retailer 13
-
$2,652 NZD
£1,177 GBP
View
B+
Retailer 14
-
$3,057 NZD
A$2,651 AUD
View
B
Retailer 15
-
$4,276 NZD
$2,410 USD
View
B
Retailer 16
-
$4,941 NZD
$2,785 USD
View
Most Expensive
B
Brilliant Earth
17388414Y · Oct 31
$5,766 NZD
$3,250 USD
View
16 more retailers have this diamond
Prices start from $481 NZDSave up to $5,286 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 Radiant
$481 NZD