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Radiant|Lab Grown|IGI

1.57ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG743593868

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

Certificate IGI LG743593868

Diamond specifications and retailer prices

From $429 AUD
$301 USD
As of October 30, 2026
Save $3,757 AUD (90%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $4,185 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.57ct lab-grown radiant diamond

This 1.57ct 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 LG743593868 or 743593868. Listed at 31 retailers as of October 30, 2026, with prices from $429 to $4,185, a $3,757 spread on the same certified stone. Brilliant Earth lists it at $4,185. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743593868
Dimensions5.71 × 5.71 × 3.79 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
5.71 mm5.71 mm1.57 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743593868
Side View
Table 62.0%Crown 40.5°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 66.4%

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: $4,185 AUD|Low: $429 AUD|High: $4,826 AUD|Avg: $1,628 AUD|-13.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 1, 2026
Retailer 8$429 AUD
Retailer 11$512 AUD
Retailer 17$528 AUD
Retailer 24$623 AUD
Retailer 3$755 AUD
Retailer 22$784 AUD
Retailer 9$826 AUD
Retailer 12$904 AUD
Retailer 13$952 AUD
Retailer 20$1,007 AUD
Retailer 2$1,050 AUD
Retailer 10$1,206 AUD
Retailer 14$1,328 AUD
Retailer 19$1,367 AUD
Retailer 4$1,631 AUD
Retailer 5$2,041 AUD
Retailer 15$2,113 AUD
Retailer 7$2,151 AUD
Retailer 16$2,251 AUD
Retailer 21$2,352 AUD
Retailer 18$2,412 AUD
Retailer 23$3,502 AUD
Retailer 6$3,801 AUD
Brilliant Earth$4,185 AUD

38 data points across 24 retailers

31 retailers$429 AUD to $4,185 AUD

A
Cheapest Retailer
-
$429 AUD
$301 USD
Retailer 2
-
$429 AUD
$301 USD
View
Price last confirmed 24 days ago
Retailer 3
-
$456 AUD
$320 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$512 AUD
$360 USD
View
Final sale: no returns
Retailer 5
-
$528 AUD
$371 USD
View
Price last confirmed 35 days ago
Retailer 6
-
$531 AUD
$373 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$558 AUD
$392 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$623 AUD
£345 GBP
View
Price last confirmed 15 days ago
A
Retailer 9
-
$755 AUD
$530 USD
View
A
Retailer 10
-
$784 AUD
HK$4,300 HKD
View
A
Retailer 11
-
$826 AUD
$580 USD
View
A
Retailer 12
-
$904 AUD
$635 USD
View
A
Retailer 13
-
$952 AUD
€637 EUR
View
A
Retailer 14
-
$1,007 AUD
ZAR 11,431 ZAR
View
A
Retailer 15
-
$1,050 AUD
£581 GBP
View
A
Retailer 16
-
$1,206 AUD
$847 USD
View
A
Retailer 17
-
$1,328 AUD
$933 USD
View
A
Retailer 18
-
$1,367 AUD
View
B+
Retailer 19
-
$1,631 AUD
$1,146 USD
View
Retailer 20
-
$1,885 AUD
$1,324 USD
View
Price last confirmed 22 days ago
B+
Retailer 21
-
$1,885 AUD
$1,324 USD
View
Retailer 22
-
$2,004 AUD
$1,408 USD
View
Price last confirmed 31 days ago
B+
Retailer 23
-
$2,041 AUD
$1,434 USD
View
B+
Retailer 24
-
$2,113 AUD
$1,484 USD
View
B+
Retailer 25
-
$2,151 AUD
$1,511 USD
View
B+
Retailer 26
-
$2,251 AUD
SGD 2,137 SGD
View
B+
Retailer 27
-
$2,352 AUD
£1,301 GBP
View
B+
Retailer 28
-
$2,412 AUD
View
B
Retailer 29
-
$3,502 AUD
$2,460 USD
View
B
Retailer 30
-
$3,801 AUD
$2,670 USD
View
Most Expensive
B
Brilliant Earth
17456789Y · Oct 30
$4,185 AUD
$2,940 USD
View
30 more retailers have this diamond
Prices start from $429 AUDSave up to $3,757 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
1.57ct Radiant
$429 AUD