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Radiant|Lab Grown|IGI

1.61ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG739586470

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

Certificate IGI LG739586470

Diamond specifications and retailer prices

From $602 AUD
$423 USD
As of November 1, 2026
Save $4,480 AUD (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $5,082 AUD 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 LG739586470 or 739586470. Listed at 25 retailers as of October 31, 2026, with prices from $602 to $5,082, a $4,480 spread on the same certified stone. Brilliant Earth lists it at $5,082. 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 angle41.7°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739586470
Dimensions8.63 × 5.84 × 3.72 mm
L/W Ratio1.48
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
8.63 mm5.84 mm1.61 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739586470
Side View
Table 67.0%Crown 41.7°Girdle: MediumPavilion 32.5°Culet: NoneDepth 63.7%

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: Nov 1
Current: $5,082 AUD|Low: $602 AUD|High: $5,637 AUD|Avg: $1,941 AUD|-9.8%
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
November 1, 2026
Retailer 7$602 AUD
Retailer 12$887 AUD
Retailer 9$890 AUD
Retailer 6$1,127 AUD
Retailer 2$1,212 AUD
Retailer 11$1,265 AUD
Retailer 5$1,543 AUD
Retailer 8$1,614 AUD
Retailer 10$1,714 AUD
Retailer 16$1,871 AUD
Retailer 14$2,148 AUD
Retailer 3$2,496 AUD
Retailer 4$2,574 AUD
Retailer 15$2,717 AUD
Retailer 13$3,986 AUD
Brilliant Earth$5,082 AUD

42 data points across 16 retailers

25 retailers$602 AUD to $5,082 AUD

Retailer 1
-
$538 AUD
$378 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$602 AUD
$423 USD
View
Final sale: no returns
Retailer 3
-
$602 AUD
$423 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$666 AUD
$468 USD
View
Price last confirmed 16 days ago
Retailer 5
-
$666 AUD
$468 USD
View
Price last confirmed 29 days ago
A
Retailer 6
-
$887 AUD
$623 USD
View
A
Retailer 7
-
$890 AUD
$625 USD
View
A
Retailer 8
-
$1,127 AUD
$792 USD
View
A
Retailer 9
-
$1,212 AUD
£670 GBP
View
A
Retailer 10
-
$1,265 AUD
ZAR 14,350 ZAR
View
A
Retailer 11
-
$1,287 AUD
$904 USD
View
B+
Retailer 12
-
$1,543 AUD
$1,084 USD
View
B+
Retailer 13
-
$1,614 AUD
$1,133 USD
View
B+
Retailer 14
-
$1,714 AUD
View
B+
Retailer 15
-
$1,871 AUD
$1,314 USD
View
B+
Retailer 16
-
$2,148 AUD
£1,188 GBP
View
Retailer 17
-
$2,366 AUD
$1,662 USD
View
Price last confirmed 15 days ago
B+
Retailer 18
-
$2,495 AUD
$1,753 USD
View
B+
Retailer 19
-
$2,496 AUD
$1,753 USD
View
B
Retailer 20
-
$2,574 AUD
$1,808 USD
View
B
Retailer 21
-
$2,583 AUD
$1,814 USD
View
Retailer 22
-
$2,717 AUD
£1,503 GBP
View
Price last confirmed 14 days ago
B
Retailer 23
-
$3,986 AUD
$2,800 USD
View
B
Retailer 24
-
$4,769 AUD
$3,350 USD
View
Most Expensive
B
Brilliant Earth
18397049Y · Oct 31
$5,082 AUD
$3,570 USD
View
24 more retailers have this diamond
Prices start from $602 AUDSave up to $4,480 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
1.61ct Radiant
$602 AUD