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Radiant|Lab Grown|IGI

1.64ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804668362

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

Certificate IGI LG804668362

Diamond specifications and retailer prices

From $1,665 NZD
$937 USD
As of November 1, 2026
Save $5,995 NZD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,660 NZD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.64ct lab-grown radiant diamond

This 1.64ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804668362 or 804668362. Listed at 8 retailers as of November 1, 2026, with prices from $1,665 to $7,660, a $5,995 spread on the same certified stone. Do Amore Diamonds lists it at $7,660. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804668362
Dimensions8.21 × 5.86 × 3.98 mm
L/W Ratio1.40
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
8.21 mm5.86 mm1.64 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804668362
Side View
Table 66.0%Crown 43.7°Girdle: MediumPavilion 39.8°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $7,660 NZD|Low: $887 NZD|High: $9,242 NZD|Avg: $3,676 NZD|-12.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
Retailer 18
November 2, 2026
Retailer 3$887 NZD
Retailer 6$967 NZD
Retailer 14$1,665 NZD
Retailer 12$1,671 NZD
Retailer 18$1,767 NZD
Retailer 17$2,202 NZD
Retailer 5$2,309 NZD
Retailer 4$2,415 NZD
Retailer 10$2,620 NZD
Retailer 2$2,671 NZD
Retailer 16$3,535 NZD
Retailer 7$4,063 NZD
Retailer 8$4,846 NZD
Retailer 11$4,927 NZD
Retailer 9$5,742 NZD
Retailer 13$6,469 NZD
Retailer 15$6,949 NZD
Do Amore Diamonds$7,660 NZD

16 data points across 18 retailers

8 retailers$1,665 NZD to $7,660 NZD

A
Cheapest Retailer
-
$1,665 NZD
$937 USD
A
Retailer 2
-
$1,671 NZD
$940 USD
View
B+
Retailer 3
-
$2,671 NZD
$1,503 USD
View
B+
Retailer 4
-
$3,535 NZD
$1,989 USD
View
B+
Retailer 5
-
$4,927 NZD
£2,183 GBP
View
B
Retailer 6
-
$6,469 NZD
$3,640 USD
View
B
Retailer 7
-
$6,949 NZD
$3,910 USD
View
Most Expensive
B
Do Amore Diamonds
27-457A5424F · Nov 1
$7,660 NZD
$4,310 USD
View
7 more retailers have this diamond
Prices start from $1,665 NZDSave up to $5,995 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
1.64ct Radiant
$1,665 NZD