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Radiant|Lab Grown|IGI

1.64ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG799676862

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

Certificate IGI LG799676862

Diamond specifications and retailer prices

From $962 AUD
$674 USD
As of November 2, 2026
Save $7,571 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,533 AUD at Do Amore Diamonds · As of November 2, 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 LG799676862 or 799676862. Listed at 22 retailers as of November 2, 2026, with prices from $962 to $8,533, a $7,571 spread on the same certified stone. Do Amore Diamonds lists it at $8,533. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799676862
Dimensions8.72 × 5.87 × 3.87 mm
L/W Ratio1.49
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
8.72 mm5.87 mm1.64 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799676862
Side View
Table 60.0%Crown 39.6°Girdle: MediumPavilion 35°Culet: NoneDepth 65.9%

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: Nov 2
Current: $8,533 AUD|Low: $923 AUD|High: $8,533 AUD|Avg: $3,071 AUD
Do Amore Diamonds
Retailer 2
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Retailer 22
November 2, 2026
Retailer 22$962 AUD
Retailer 21$1,046 AUD
Retailer 9$1,074 AUD
Retailer 3$1,114 AUD
Retailer 10$1,114 AUD
Retailer 16$1,370 AUD
Retailer 5$1,421 AUD
Retailer 6$1,468 AUD
Retailer 18$1,534 AUD
Retailer 8$1,816 AUD
Retailer 13$1,976 AUD
Retailer 2$2,261 AUD
Retailer 20$2,848 AUD
Retailer 7$3,460 AUD
Retailer 4$3,803 AUD
Retailer 14$3,827 AUD
Retailer 11$3,829 AUD
Retailer 15$4,403 AUD
Retailer 12$4,432 AUD
Retailer 17$4,838 AUD
Retailer 19$5,579 AUD
Do Amore Diamonds$8,533 AUD

44 data points across 22 retailers

22 retailers$962 AUD to $8,533 AUD

A
Cheapest Retailer
-
$962 AUD
$674 USD
A
Retailer 2
-
$1,046 AUD
$733 USD
View
A
Retailer 3
-
$1,074 AUD
$753 USD
View
Final sale: no returns
Retailer 4
-
$1,114 AUD
$781 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$1,114 AUD
$781 USD
View
A
Retailer 6
-
$1,370 AUD
$960 USD
View
A
Retailer 7
-
$1,421 AUD
$996 USD
View
A
Retailer 8
-
$1,468 AUD
$1,029 USD
View
A
Retailer 9
-
$1,534 AUD
HK$8,400 HKD
View
B+
Retailer 10
-
$1,816 AUD
$1,273 USD
View
B+
Retailer 11
-
$1,976 AUD
£1,090 GBP
View
B+
Retailer 12
-
$2,261 AUD
ZAR 25,601 ZAR
View
B+
Retailer 13
-
$2,848 AUD
$1,996 USD
View
B
Retailer 14
-
$3,460 AUD
$2,425 USD
View
B
Retailer 15
-
$3,803 AUD
$2,665 USD
View
B
Retailer 16
-
$3,827 AUD
£2,112 GBP
View
B
Retailer 17
-
$3,829 AUD
$2,683 USD
View
B
Retailer 18
-
$4,403 AUD
$3,086 USD
View
B
Retailer 19
-
$4,432 AUD
SGD 4,197 SGD
View
Retailer 20
-
$4,838 AUD
£2,670 GBP
View
Price last confirmed 7 days ago
B
Retailer 21
-
$5,579 AUD
$3,910 USD
View
Most Expensive
B
Do Amore Diamonds
27-4291426D9 · Nov 2
$8,533 AUD
$5,980 USD
View
21 more retailers have this diamond
Prices start from $962 AUDSave up to $7,571 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
$962 AUD