CaratHunter
Plans
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 $1,337 AUD
$937 USD
As of November 1, 2026
Save $4,813 AUD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,150 AUD 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 $1,337 to $6,150, a $4,813 spread on the same certified stone. Do Amore Diamonds lists it at $6,150. 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: $6,150 AUD|Low: $712 AUD|High: $7,420 AUD|Avg: $2,951 AUD|-12.2%
Do Amore Diamonds
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
Retailer 18
November 2, 2026
Retailer 3$712 AUD
Retailer 6$776 AUD
Retailer 14$1,337 AUD
Retailer 12$1,341 AUD
Retailer 18$1,418 AUD
Retailer 17$1,768 AUD
Retailer 5$1,854 AUD
Retailer 4$1,939 AUD
Retailer 10$2,103 AUD
Retailer 2$2,145 AUD
Retailer 16$2,838 AUD
Retailer 7$3,262 AUD
Retailer 8$3,890 AUD
Retailer 11$3,956 AUD
Retailer 9$4,610 AUD
Retailer 13$5,194 AUD
Retailer 15$5,579 AUD
Do Amore Diamonds$6,150 AUD

16 data points across 18 retailers

8 retailers$1,337 AUD to $6,150 AUD

A
Cheapest Retailer
-
$1,337 AUD
$937 USD
A
Retailer 2
-
$1,341 AUD
$940 USD
View
B+
Retailer 3
-
$2,145 AUD
$1,503 USD
View
B+
Retailer 4
-
$2,838 AUD
$1,989 USD
View
B+
Retailer 5
-
$3,956 AUD
£2,183 GBP
View
B
Retailer 6
-
$5,194 AUD
$3,640 USD
View
B
Retailer 7
-
$5,579 AUD
$3,910 USD
View
Most Expensive
B
Do Amore Diamonds
27-457A5424F · Nov 1
$6,150 AUD
$4,310 USD
View
7 more retailers have this diamond
Prices start from $1,337 AUDSave up to $4,813 AUD

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
$1,337 AUD