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Radiant|Lab Grown|IGI

1.61ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG625406942

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

Certificate IGI LG625406942

Diamond specifications and retailer prices

From $393 AUD
$276 USD
As of October 30, 2026
Save $4,234 AUD (92%) vs most expensive(unlock to see where)
24 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 LG625406942 or 625406942. Listed at 24 retailers as of October 30, 2026, with prices from $393 to $4,627, a $4,234 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 angle41.2°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625406942
Dimensions8.31 × 5.97 × 3.85 mm
L/W Ratio1.39
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
8.31 mm5.97 mm1.61 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625406942
Side View
Table 62.0%Crown 41.2°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 64.5%

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: $393 AUD|High: $6,606 AUD|Avg: $1,757 AUD|-30.0%
Brilliant Earth
Retailer 2
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Retailer 23
November 1, 2026
Retailer 8$393 AUD
Retailer 9$440 AUD
Retailer 5$457 AUD
Retailer 3$488 AUD
Retailer 23$488 AUD
Retailer 2$569 AUD
Retailer 11$806 AUD
Retailer 22$811 AUD
Retailer 17$862 AUD
Retailer 21$925 AUD
Retailer 13$957 AUD
Retailer 6$972 AUD
Retailer 4$1,256 AUD
Retailer 20$1,256 AUD
Retailer 12$1,499 AUD
Retailer 16$1,731 AUD
Retailer 15$1,875 AUD
Retailer 7$1,964 AUD
Retailer 14$2,019 AUD
Retailer 18$2,170 AUD
Retailer 10$3,488 AUD
Retailer 19$3,943 AUD
Brilliant Earth$4,627 AUD

32 data points across 23 retailers

24 retailers$393 AUD to $4,627 AUD

A
Cheapest Retailer
-
$393 AUD
$276 USD
A
Retailer 2
-
$440 AUD
$309 USD
View
Final sale: no returns
A
Retailer 3
-
$457 AUD
$321 USD
View
A
Retailer 4
-
$488 AUD
$343 USD
View
A
Retailer 5
-
$488 AUD
$343 USD
View
A
Retailer 6
-
$569 AUD
£315 GBP
View
A
Retailer 7
-
$806 AUD
$566 USD
View
A
Retailer 8
-
$811 AUD
$570 USD
View
A
Retailer 9
-
$862 AUD
€577 EUR
View
A
Retailer 10
-
$925 AUD
ZAR 10,501 ZAR
View
A
Retailer 11
-
$957 AUD
£529 GBP
View
A
Retailer 12
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$972 AUD
$683 USD
View
A
Retailer 13
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$1,256 AUD
$882 USD
View
A
Retailer 14
-
$1,256 AUD
View
A
Retailer 15
-
$1,499 AUD
$1,053 USD
View
B+
Retailer 16
-
$1,731 AUD
$1,216 USD
View
B+
Retailer 17
-
$1,875 AUD
$1,317 USD
View
B+
Retailer 18
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$1,964 AUD
$1,380 USD
View
B+
Retailer 19
-
$2,019 AUD
SGD 1,917 SGD
View
B+
Retailer 20
-
$2,170 AUD
£1,200 GBP
View
B
Retailer 21
-
$3,488 AUD
$2,450 USD
View
Retailer 22
-
$3,943 AUD
$2,770 USD
View
Price last confirmed 13 days ago
B
Retailer 23
-
$3,943 AUD
$2,770 USD
View
Most Expensive
B
Brilliant Earth
13714359Y · Oct 31
$4,627 AUD
$3,250 USD
View
23 more retailers have this diamond
Prices start from $393 AUDSave up to $4,234 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
$393 AUD