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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 $386 AUD
$271 USD
As of October 30, 2026
Save $4,241 AUD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,627 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 LG754594007 or 754594007. Listed at 17 retailers as of October 30, 2026, with prices from $386 to $4,627, a $4,241 spread on the same certified stone. Brilliant Earth lists it at $4,627. 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: $4,627 AUD|Low: $386 AUD|High: $6,805 AUD|Avg: $1,839 AUD|-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$386 AUD
Retailer 5$447 AUD
Retailer 9$481 AUD
Retailer 13$729 AUD
Retailer 7$790 AUD
Retailer 16$793 AUD
Retailer 2$879 AUD
Retailer 3$1,240 AUD
Retailer 8$1,271 AUD
Retailer 15$1,471 AUD
Retailer 4$1,523 AUD
Retailer 17$1,698 AUD
Retailer 11$2,128 AUD
Retailer 10$2,453 AUD
Retailer 14$3,431 AUD
Retailer 6$3,965 AUD
Brilliant Earth$4,627 AUD

35 data points across 17 retailers

17 retailers$386 AUD to $4,627 AUD

A
Cheapest Retailer
-
$386 AUD
$271 USD
A
Retailer 2
-
$447 AUD
$314 USD
View
A
Retailer 3
-
$481 AUD
$338 USD
View
Final sale: no returns
A
Retailer 4
-
$729 AUD
$512 USD
View
A
Retailer 5
-
$790 AUD
$555 USD
View
A
Retailer 6
-
$793 AUD
$557 USD
View
A
Retailer 7
-
$879 AUD
€588 EUR
View
Retailer 8
-
$1,240 AUD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$1,271 AUD
$893 USD
View
B+
Retailer 10
-
$1,471 AUD
$1,033 USD
View
A
Retailer 11
-
$1,523 AUD
$1,070 USD
View
B+
Retailer 12
-
$1,698 AUD
$1,193 USD
View
B+
Retailer 13
-
$2,128 AUD
£1,177 GBP
View
B+
Retailer 14
-
$2,453 AUD
View
B
Retailer 15
-
$3,431 AUD
$2,410 USD
View
B
Retailer 16
-
$3,965 AUD
$2,785 USD
View
Most Expensive
B
Brilliant Earth
17388414Y · Oct 31
$4,627 AUD
$3,250 USD
View
16 more retailers have this diamond
Prices start from $386 AUDSave up to $4,241 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
$386 AUD